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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#41
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Lightbulbs - the facts?
In message , Gazz writes
"Bert Coules" wrote in message ... Dave Plowman wrote: It's only *some* tungsten lamps which are 'banned'. Mainly GLS (basic lamps). 'Specials' - like it seems you have - are still available. Thanks for that. Mine are R50s - I couldn't remember the designation when I wrote my last post. I'm puzzled though: what's the justification for doing away with the larger bulbs and not the smaller? the larger bulbs use more power, which apparantly means more greenarse gasses produced, which is killing the plannet they rekon, so get rid of them and the greenarses can feel smug that they have done their bit to save the planet, don't worry, they'll get to the smaller bulbs in time, then they will start moaning about the mercury in the cfl's and make us switch to led's, untill someone points out something bad about the manafacture of them and they make us all use fart gas for lighting... they produce enough of it, so may as well burn it for light. I have cfl that has failed. The only way to get rid of it legit is tot take it to the local tip which is a round trip of about 8 miles using over a litre of petrol at £1.38 in my Landie. (No bus service goes anywhere near) -- hugh |
#42
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Lightbulbs - the facts?
In message
, Owain writes On Oct 15, 11:56*am, "Bert Coules" wrote: Thanks for that. *Mine are R50s - I couldn't remember the designation when I wrote my last post. *I'm puzzled though: what's the justification for doing away with the larger bulbs and not the smaller? Bulb manufacturers make more profit on the fancy smaller bulbs. Bulb manufacturers lobby the EU for changes in the lightbulb laws. Owain And the people who make the decisions are not answerable to anyone - neither electors nor consumers. -- hugh |
#43
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Lightbulbs - the facts?
In message , John
Rumm writes On 15/10/2011 13:01, Stephen wrote: "Jim wrote in message ... What, exactly, is the situation regarding the phasing out of tungsten lightbulbs? All my main room lights are on dimmer switches so do I fill my spare bedroom with bulbs for the future? You've raised a point indirectly for me. I have 8 off 50 watt GU10 tungsten bulbs on two dimmer switches, so thats a total load max of 200 watts per dimmer. I recall that when fitting the dimmer switch, it needs a minimum load to work properly which was 100 watts, SO I am OK if two out of our bulbs go pop. Now I have seen in my local Tescos that there are Philips LED GU10 lamps that are 4 watts each and are compatible with dimmers. So if I replace the 8 off 50 watt bulbs with these 4 watt dimmable LED GU10's thats a load of 16 watts per dimmer knob..... Have I got to change the dimmer switch as well? Probably... or use a combination of real bulbs and energy saving to keep above the threshold but reduce the total. This can also work well with multibulb fittings I find - you can use a few CFLs to keep the spaces populated and running costs down, while contributing some[1] light, but have a real tungsten one in there as well to give proper colour rendition ans usable illumination. [1] For example one of the fittings in my hall has three separate BC lamp holders. Its fitted with two 7W compact candle CFLs that claim 40W filament lamp equivalence, and one traditional 40W clear candle bulb. Using a Lux meter 6' below the fitting shows that the two CFLs (when warmed up) provide 14 lux between them. Adding the incandescent brings the total up to 36 lux. I have 4 Par38 downlighters in the kitchen. Two are now CFL equivalents. 2 are 80w incandescent. The latter give instant light and are over the sink and hob so give welcome heat in winter -- hugh |
#44
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Lightbulbs - the facts?
In article ,
hugh ] writes: In message , Gareth writes You can now get halogen bulbs inside ordinary light bulbs. These work with ordinary dimmers, they come on instantly and, in my opinion, they give a much nicer light than CFLs. They are slightly more efficient that the traditional light bulbs e.g. 42W replacing 60W (but nowhere near as efficient as CFLs). In that case it must either give out less light or less heat, and as Less of both. As mentioned in another thread, I tried swapping 25W candles for their replacements which are 18W halogens - noticabley dimmer. Had to go up to the 28W version (which is supposed to replace 40W). Actually, nowhere on the packaging for any of these lamps that I have does it claim they have the same light output was the ones they are supposed to replace. I can easily show with a light meter that the 70W and 42W (100W and 60W replacements) are dimmer than their original GLS lamps. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#45
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Lightbulbs - the facts?
In article ,
hugh ] writes: In message , John Rumm writes Probably... or use a combination of real bulbs and energy saving to keep above the threshold but reduce the total. This can also work well with multibulb fittings I find - you can use a few CFLs to keep the spaces populated and running costs down, while contributing some[1] light, but have a real tungsten one in there as well to give proper colour rendition ans usable illumination. [1] For example one of the fittings in my hall has three separate BC lamp holders. Its fitted with two 7W compact candle CFLs that claim 40W filament lamp equivalence, and one traditional 40W clear candle bulb. Equivalence of a 7W CFL will be about 4 x 7 = 28W. CFL candles usually have quite a lossy outer bulb, which will drag that down. If the fittings rely on the expected filament position for lamp optics, then much of the light from the CFL comes from elsewhere on the lamp. Using a Lux meter 6' below the fitting shows that the two CFLs (when warmed up) provide 14 lux between them. Adding the incandescent brings the total up to 36 lux. I have 4 Par38 downlighters in the kitchen. Two are now CFL equivalents. 2 are 80w incandescent. The latter give instant light and are over the sink and hob so give welcome heat in winter If the fittings are well ventilated, you might consider a GE Genura, although it's an R80 replacement so might not fit well in some cases. The GE Genura is a 23W electrodeless CFL, with slightly more light output than a 100W R80, and thus fairly unique in generating more light than the filament lamp it replaces in the same size. They are expensive, but should last a long time providing they don't run too hot (they have no electrodes to wear out, which is the normal CFL failure mode). B&Q used to stock them (not looked for ages though.) -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#46
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Lightbulbs - the facts?
On 16/10/2011 19:44, Andrew Gabriel wrote:
In , ] writes: In messageaeGdnaQRTI2MHgTTnZ2dnUVZ8hmdnZ2d@brightvie w.co.uk, John writes Probably... or use a combination of real bulbs and energy saving to keep above the threshold but reduce the total. This can also work well with multibulb fittings I find - you can use a few CFLs to keep the spaces populated and running costs down, while contributing some[1] light, but have a real tungsten one in there as well to give proper colour rendition ans usable illumination. [1] For example one of the fittings in my hall has three separate BC lamp holders. Its fitted with two 7W compact candle CFLs that claim 40W filament lamp equivalence, and one traditional 40W clear candle bulb. Equivalence of a 7W CFL will be about 4 x 7 = 28W. I would estimate more like 3 x 7 in this case... Its a difficult one to judge - with all three on, there is not much visible difference looking at the lamps, or for that matter looking at the light spilling on the walls. However, the moment the filament lamp fails, its a case "who turned out the lights?", the loss in overall illumination is then very noticeable (whereas removing one of the CFLs does not make much difference). On the bright side, they are physically similar in appearance, and a good colour temperature match (even if not comparable for colour rendition). CFL candles usually have quite a lossy outer bulb, which will drag that down. If the fittings rely on the expected filament position for lamp optics, then much of the light from the CFL comes from elsewhere on the lamp. No these are cap up, on a three armed pendent affair with hemispherical semi opaque glass shades above, and a dangly bits round the bottom - so the bulb is free to do its stuff without interference. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#47
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Lightbulbs - the facts?
On Sat, 15 Oct 2011 11:36:40 +0100, "Dave Plowman (News)"
wrote: In article , Bolted wrote: You can buy halogen replacements, which are pretty much identical albeit more expensive to buy and less expensive to run. Or you can readily buy dimmable CFLs these days. If you really like the stone age, it is more authentic to light a fire in the corner of the room. Quite. Although the implementation I see in most houses where they're paranoid about changed to CFL is more akin to candle light, level wise. But without the pleasant effect. And, like candles, they take a while to reach full brightness. -- (\__/) M. (='.'=) Due to the amount of spam posted via googlegroups and (")_(") their inaction to the problem. I am blocking some articles posted from there. If you wish your postings to be seen by everyone you will need use a different method of posting. |
#48
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Lightbulbs - the facts?
On Oct 15, 10:53*am, Gareth wrote:
On 15/10/2011 10:26, Jim S wrote: What, exactly, is the situation regarding the phasing out of tungsten lightbulbs? All my main room lights are on dimmer switches so do I fill my spare bedroom with bulbs for the future? You may already be too late, or you could be lucky and get some very cheap in the 99p Shop or the clearance sections of other shops. Or Asda, or Morrisons, or Tesco, or... They are still widely available, just not in 100W versions. MBQ |
#49
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Lightbulbs - the facts?
On Sun, 16 Oct 2011 19:44:50 +0100, Andrew Gabriel
wrote: If the fittings are well ventilated, you might consider a GE Genura, although it's an R80 replacement so might not fit well in some cases. I have six GE Genuras in a ceiling track fitting (it's a big room!). Their brightness is impressive, but like all CFLs (IME) they fail suddenly long before their advertised lifetime, and they're jolly expensive to replace. Temperature may be an issue, because they're in bog standard unventilated fittings, but being intended as an R80 replacement surely that's exactly what they should be designed for? I'm surprised the manufacturers can get away with quoting an 'average lifetime' that is only achievable if the lamp has good ventilation, something which I would think is hardly ever the case with an R80 fitting. Richard. http://www.rtrussell.co.uk/ |
#50
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Lightbulbs - the facts?
hugh ] writes:
In that case it must either give out less light or less heat, and as pointed out elsewhere the heat given off reduces the demand on the heating system for most of the year., so they are only more efficient in summer. And the light ends up as heat! -- Windmill, Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost |
#51
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Lightbulbs - the facts?
hugh ] writes:
And the people who make the decisions are not answerable to anyone - neither electors nor consumers. In practice, that's an accurate description of any gov't. -- Windmill, Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost |
#52
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Lightbulbs - the facts?
In article op.v3h7f6apn5ksl5@richard,
Richard Russell wrote: If the fittings are well ventilated, you might consider a GE Genura, although it's an R80 replacement so might not fit well in some cases. I have six GE Genuras in a ceiling track fitting (it's a big room!). Their brightness is impressive, but like all CFLs (IME) they fail suddenly long before their advertised lifetime, and they're jolly expensive to replace. Temperature may be an issue, because they're in bog standard unventilated fittings, but being intended as an R80 replacement surely that's exactly what they should be designed for? I'm surprised the manufacturers can get away with quoting an 'average lifetime' that is only achievable if the lamp has good ventilation, something which I would think is hardly ever the case with an R80 fitting. I've tried them too. Very impressive. But what seems to be the problem is if they are run pointing downwards - as pretty well all spots are - the heat from the unit effects the life of the electronics. And at that high cost it saved me no money at all over a tungsten. If pointing upwards, they may well have their claimed life... -- *Time is the best teacher; unfortunately it kills all its students. Dave Plowman London SW To e-mail, change noise into sound. |
#53
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Lightbulbs - the facts?
On Mon, 17 Oct 2011 18:05:19 +0100
"Dave Plowman (News)" wrote: In article op.v3h7f6apn5ksl5@richard, Richard Russell wrote: If the fittings are well ventilated, you might consider a GE Genura, although it's an R80 replacement so might not fit well in some cases. I have six GE Genuras in a ceiling track fitting (it's a big room!). Their brightness is impressive, but like all CFLs (IME) they fail suddenly long before their advertised lifetime, and they're jolly expensive to replace. Temperature may be an issue, because they're in bog standard unventilated fittings, but being intended as an R80 replacement surely that's exactly what they should be designed for? I'm surprised the manufacturers can get away with quoting an 'average lifetime' that is only achievable if the lamp has good ventilation, something which I would think is hardly ever the case with an R80 fitting. I've tried them too. Very impressive. But what seems to be the problem is if they are run pointing downwards - as pretty well all spots are - the heat from the unit effects the life of the electronics. And at that high cost it saved me no money at all over a tungsten. If pointing upwards, they may well have their claimed life... Our house has lots of previously-installed upward-pointing lights. I hate them. But that seems to be the trend, illuminate your ceiling. Strange. -- Davey. |
#54
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Lightbulbs - the facts?
"Richard Russell" writes:
I have six GE Genuras in a ceiling track fitting (it's a big room!). Their brightness is impressive, but like all CFLs (IME) they fail suddenly long before their advertised lifetime, and they're jolly expensive to replace. Indeed. The expense is the reason I never bought any. But I wonder if the early failures (of all types) could be due in part to surge voltages on the mains. In this country the surges may not be as frequent, but people in Canada who were at the end of miles of overhead power lines could expect a few equipment failures every time there was a powerful thunderstorm. (I remember a nuclear research place!) And a GE blurb reported surges/spikes of 1000V. in such circumstances. AIR CPC once sold surge suppressors which could be fitted in a consumer unit. Something like that might help. -- Windmill, Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost |
#55
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Lightbulbs - the facts?
Davey writes:
Our house has lots of previously-installed upward-pointing lights. I hate them. But that seems to be the trend, illuminate your ceiling. Strange. Simulate the outdoors? -- Windmill, Use t m i l l J.R.R. Tolkien:- @ O n e t e l . c o m All that is gold does not glister / Not all who wander are lost |
#56
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Lightbulbs - the facts?
On 15-10-2011 13:26, Brian Gaff wrote:
One could I guess make a case that tungston should be refitted during the cold days of winter to reduce heating costs.. grin. Brian Attractive idea except that heat rises so you will be adding heat to where it eventually ends up that's why most heating systems are low down close to the floor where all the cold air is. |
#57
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Lightbulbs - the facts?
On Oct 15, 11:36*am, Bolted wrote:
You can buy halogen replacements, which are pretty much identical albeit more expensive to buy and less expensive to run. Will halogens end up being phased out as well? The GU10s in the spotlight plates I have a lot of in my house kick out an almighty amount of heat. FWIW, I like this, because it saves putting the heating on if it's only *a bit* on the cold side. Neil |
#58
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Lightbulbs - the facts?
On Oct 15, 2:01*pm, "Stephen" wrote:
Now I have seen in my local Tescos that there are Philips LED GU10 lamps that are 4 watts each and are compatible with dimmers. I have two of those in my hallway. Tried them in the lounge out of interest, and they are not as bright as 50W halogens, so be careful. If they're not warm white, don't bother, either. LED light is otherwise very blue. Neil |
#59
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Lightbulbs - the facts?
On Oct 16, 12:37*am, Davey wrote:
In Detroit, the 5 D-cell Maglights are known as Malice Green lights, after a guy who was beaten to desth by cops using these. See:http://en.wikipedia.org/wiki/Malice_Green Don't mess with Detroit cops, especially if you happen to be black and poor! Being stoned doesn't help, either. Given that 2 or 3D is bright enough for most purposes, I have always assumed that the only reason security guards carry them is so they can use them as weapons without having to worry about getting into trouble for carrying them. Neil |
#60
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Lightbulbs - the facts?
On Tue, 18 Oct 2011 01:58:43 -0700 (PDT)
Neil Williams wrote: On Oct 16, 12:37Â*am, Davey wrote: In Detroit, the 5 D-cell Maglights are known as Malice Green lights, after a guy who was beaten to desth by cops using these. See:http://en.wikipedia.org/wiki/Malice_Green Don't mess with Detroit cops, especially if you happen to be black and poor! Being stoned doesn't help, either. Given that 2 or 3D is bright enough for most purposes, I have always assumed that the only reason security guards carry them is so they can use them as weapons without having to worry about getting into trouble for carrying them. Neil Sounds right. You don't need more than 3x3D cells for looking into cars. - Davey. |
#61
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Lightbulbs - the facts?
On 18 Oct 2011 09:10:20 GMT
Huge wrote: Neil Williams wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Rather you than me. My wife's handbag is like the one that little old lady used a few months ago to stop a jewellery shop robbery, so I feel safe! Where did the text go, that I was replying to? Strange, it was there in the original, but I had to copy and paste it for this reply. -- Davey. |
#62
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Lightbulbs - the facts?
Huge wrote:
[snip] I don't own a Maglight. I have a diver's torch that serves the same purpose. How does the diver find his way around? |
#63
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Lightbulbs - the facts?
In article , Neil Williams wrote:
On Oct 16, 12:37*am, Davey wrote: In Detroit, the 5 D-cell Maglights are known as Malice Green lights, after a guy who was beaten to desth by cops using these. See:http://en.wikipedia.org/wiki/Malice_Green Don't mess with Detroit cops, especially if you happen to be black and poor! Being stoned doesn't help, either. Given that 2 or 3D is bright enough for most purposes, I have always assumed that the only reason security guards carry them is so they can use them as weapons without having to worry about getting into trouble for carrying them. See also http://www.niton999.co.uk/shop/produ...ode_AA319.html http://www.amazon.com/Black-Maglite-.../dp/B001D4CTII http://en.wikipedia.org/wiki/Baton_%...e-handle_baton |
#64
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Lightbulbs - the facts?
On Mon, 17 Oct 2011 08:51:54 -0700 (PDT), Man at B&Q wrote:
On Oct 15, 10:53*am, Gareth wrote: On 15/10/2011 10:26, Jim S wrote: What, exactly, is the situation regarding the phasing out of tungsten lightbulbs? All my main room lights are on dimmer switches so do I fill my spare bedroom with bulbs for the future? You may already be too late, or you could be lucky and get some very cheap in the 99p Shop or the clearance sections of other shops. Or Asda, or Morrisons, or Tesco, or... They are still widely available, just not in 100W versions. MBQ Thank you. That was all I wanted to know ) -- Jim S Tyneside UK www.jimscott.co.uk |
#65
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Lightbulbs - the facts?
On 18 Oct 2011 10:12:56 GMT
Huge wrote: On 2011-10-18, Davey wrote: On 18 Oct 2011 09:10:20 GMT Huge wrote: Neil Williams wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Why would it melt? I have always felt that putting coins inside a torch would be akin to carrying a fully charged battery in a pocket full of coins, ie asking for a short right where you don't want it. -- Davey. |
#66
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Lightbulbs - the facts?
In article ,
Davey wrote: On 18 Oct 2011 10:12:56 GMT Huge wrote: On 2011-10-18, Davey wrote: On 18 Oct 2011 09:10:20 GMT Huge wrote: Neil Williams wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Why would it melt? I have always felt that putting coins inside a torch would be akin to carrying a fully charged battery in a pocket full of coins, ie asking for a short right where you don't want it. Not if they are fitted in so nothing can move. -- From KT24 Using a RISC OS computer running v5.16 |
#67
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Lightbulbs - the facts?
On 18/10/2011 09:35, Rob wrote:
On 15-10-2011 13:26, Brian Gaff wrote: One could I guess make a case that tungston should be refitted during the cold days of winter to reduce heating costs.. grin. Brian Attractive idea except that heat rises so you will be adding heat to where it eventually ends up that's why most heating systems are low down close to the floor where all the cold air is. Assuming you have other sources of heating, then it does not really matter. If the air in the room is still, then the lamp will help heat the stratified top layer, thus pushing the effects of your other heaters down lower. If there are decent convection currents running in the room, then the hot air will circulate. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#68
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Lightbulbs - the facts?
On 18/10/2011 12:40, Davey wrote:
On 18 Oct 2011 10:12:56 GMT wrote: On 2011-10-18, wrote: On 18 Oct 2011 09:10:20 GMT wrote: Neil wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Why would it melt? I have always felt that putting coins inside a torch would be akin to carrying a fully charged battery in a pocket full of coins, ie asking for a short right where you don't want it. I expect the idea is that you chose a coin of similar diameter to the battery you are replacing. So a stack of them is no more able to move about than the batteries are likely to change order. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#69
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Lightbulbs - the facts?
John Rumm wrote:
On 18/10/2011 12:40, Davey wrote: On 18 Oct 2011 10:12:56 GMT wrote: On 2011-10-18, wrote: On 18 Oct 2011 09:10:20 GMT wrote: Neil wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Why would it melt? I have always felt that putting coins inside a torch would be akin to carrying a fully charged battery in a pocket full of coins, ie asking for a short right where you don't want it. I expect the idea is that you chose a coin of similar diameter to the battery you are replacing. So a stack of them is no more able to move about than the batteries are likely to change order. You would need to wrap them (the sides, not the ends) in insulation so that they couldn't touch the case if it was metal or unlined with an insulator. Otherwise they would short the batteries to earth. Tim |
#70
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Lightbulbs - the facts?
On 18/10/2011 09:55, Neil Williams wrote:
On Oct 15, 2:01 pm, wrote: Now I have seen in my local Tescos that there are Philips LED GU10 lamps that are 4 watts each and are compatible with dimmers. I have two of those in my hallway. Tried them in the lounge out of interest, and they are not as bright as 50W halogens, so be careful. If they're not warm white, don't bother, either. LED light is otherwise very blue. White LEDs on their own are quite blue, however many of those designed for interior lighting are actually combination LED/Fluorescent and give a warmer (if CFL like) light. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#71
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Lightbulbs - the facts?
On Oct 18, 2:28*pm, John Rumm wrote:
White LEDs on their own are quite blue, however many of those designed for interior lighting are actually combination LED/Fluorescent and give a warmer (if CFL like) light. Yep, the ones I have are like that and produce a light not completely dissimilar to a halogen GU10, though with a very slight[1] flicker and blue tinge. [1] I am extremely sensitive to flicker - the days of 50 and 60Hz CRT monitors were horrible and interlace was unusable - but I can *only just* notice it on these. Neil |
#72
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Lightbulbs - the facts?
On Oct 18, 2:26*pm, "Tim Downie" wrote:
You would need to wrap them (the sides, not the ends) in insulation so that they couldn't touch the case if it was metal or unlined with an insulator.. Otherwise they would short the batteries to earth. Which as long as you put them at the negative end of the bottom battery is fine. Most traditional metal torches that I've seen ground the negative end of the bottom-most battery to the case - why provide an extra wire when the case can do the job? (For avoidance of doubt I do not own a "large" Maglite and would not be looking to turn one into a cosh even if I did). Neil |
#73
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Lightbulbs - the facts?
On Saturday, October 15, 2011 2:05:50 PM UTC+1, Andrew Gabriel wrote:
In article , Jim S writes: What, exactly, is the situation regarding the phasing out of tungsten lightbulbs? All my main room lights are on dimmer switches so do I fill my spare bedroom with bulbs for the future? Across the extended family, we have two rooms with dimmers. 1) Central light taking 5 x SES 25W candles. There's an 18W halogen replacement, and I tried one. It was very noticably dimmer than the 25W candles, so I went to the next size up, 28W halogen. That's fine, so they've now all been replaced with 28W halogens. So far, none of the halogen replacements have died, and the increase in light output has been welcomed. 2) Central light with 3 x BC 60W cables plus 2 x 60W wall lights. In this case, I wanted to reduce power consumption, mindful of the 300W of lighting, but the fittings/shades were very much wanted, and so I had to think of some way which retained them. I decided to convert them all to 12V halogens. I made up five adaptors to convert BC to GY6.35 (bi-pin), so I could retrofit 12V capsule lamps, being careful to make them so filament position was the same as with the 60W candles. http://www.cucumber.demon.co.uk/lights/adapter.jpg I bought 35W 12V halogen capsules to replace the 60W mains lamps. How did you connect up the leads to the old GLS bulb base (assuming that is what it is ?). Would the insurance be OK in a fire if they found those ? Simon. |
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Lightbulbs - the facts?
Tim Streater wrote:
In article , "Tim Downie" wrote: John Rumm wrote: On 18/10/2011 12:40, Davey wrote: On 18 Oct 2011 10:12:56 GMT wrote: On 2011-10-18, wrote: On 18 Oct 2011 09:10:20 GMT wrote: Neil wrote: Quote: "Ah, but what you do is replace 2 of the batteries in a 5-cell with a stack of coins (2p's in the UK, no idea what the merkins use) to make the flashlight a better cosh. Or so I'm told." And wait for it to melt in your hand? Why would it melt? I have always felt that putting coins inside a torch would be akin to carrying a fully charged battery in a pocket full of coins, ie asking for a short right where you don't want it. I expect the idea is that you chose a coin of similar diameter to the battery you are replacing. So a stack of them is no more able to move about than the batteries are likely to change order. You would need to wrap them (the sides, not the ends) in insulation so that they couldn't touch the case if it was metal or unlined with an insulator. Otherwise they would short the batteries to earth. You sure? Doesn't the end of the battery furthest from the blub earth to the case of the torch? In which case it wouldn't matter if the coins did touch the case as long as you put them at the end away from the bulb. Although I suppose if you wanted to use it as a cosh you'd want all the weight at the front. I was assuming that they were inserted near the bulb end but as you say, if you're just replacing the "lowest" battery, then it wouldn't be a problem. Tim |
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Lightbulbs - the facts?
On 18/10/11 14:51, Neil Williams wrote:
On Oct 18, 2:26 pm, "Tim Downie" wrote: You would need to wrap them (the sides, not the ends) in insulation so that they couldn't touch the case if it was metal or unlined with an insulator. Otherwise they would short the batteries to earth. Which as long as you put them at the negative end of the bottom battery is fine. Most traditional metal torches that I've seen ground the negative end of the bottom-most battery to the case - why provide an extra wire when the case can do the job? But that would mean putting the added heft at the wrong end of th torch? (For avoidance of doubt I do not own a "large" Maglite and would not be looking to turn one into a cosh even if I did). Neil -- djc |
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Lightbulbs - the facts?
On 18/10/11 11:53, Alan Braggins wrote:
In article , Neil Williams wrote: Given that 2 or 3D is bright enough for most purposes, I have always assumed that the only reason security guards carry them is so they can use them as weapons without having to worry about getting into trouble for carrying them. See also http://www.niton999.co.uk/shop/produ...ode_AA319.html http://www.amazon.com/Black-Maglite-.../dp/B001D4CTII http://en.wikipedia.org/wiki/Baton_%...e-handle_baton and most relevant http://en.wikipedia.org/wiki/Baton_%...29#Flashlights -- djc |
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Lightbulbs - the facts?
"Neil Williams" wrote in message ... (For avoidance of doubt I do not own a "large" Maglite and would not be looking to turn one into a cosh even if I did). I have a four D cell one. You don't need to modify it to be a cosh. It hardly ever gets used since I bought a £4 LED torch from Lidl. The Lidl one is much brighter and the three AA cells last for ages. |
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Lightbulbs - the facts?
"djc" wrote in message ... On 18/10/11 14:51, Neil Williams wrote: On Oct 18, 2:26 pm, "Tim Downie" wrote: You would need to wrap them (the sides, not the ends) in insulation so that they couldn't touch the case if it was metal or unlined with an insulator. Otherwise they would short the batteries to earth. Which as long as you put them at the negative end of the bottom battery is fine. Most traditional metal torches that I've seen ground the negative end of the bottom-most battery to the case - why provide an extra wire when the case can do the job? But that would mean putting the added heft at the wrong end of th torch? You wouldn't hit them with the front of the torch. You want it to continue working so you can find them to hit them again. |
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Lightbulbs - the facts?
In article ,
Man at B&Q wrote: You may already be too late, or you could be lucky and get some very cheap in the 99p Shop or the clearance sections of other shops. Or Asda, or Morrisons, or Tesco, or... They are still widely available, just not in 100W versions. Found some excellent energy saving bulbs up our local elcheapo store the other day. Almost as good as the old ones - bright, decent light, dimmable. http://twitter.com/#!/dmchapman/stat...623808/photo/1 Darren |
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Lightbulbs - the facts?
D.M.Chapman wrote:
In article , Man at B&Q wrote: You may already be too late, or you could be lucky and get some very cheap in the 99p Shop or the clearance sections of other shops. Or Asda, or Morrisons, or Tesco, or... They are still widely available, just not in 100W versions. Found some excellent energy saving bulbs up our local elcheapo store the other day. Almost as good as the old ones - bright, decent light, dimmable. http://twitter.com/#!/dmchapman/stat...623808/photo/1 What an annoying link. It wants me to sign in to/ up for Twitter before it will show me the picture. -- Tciao for Now! John. |
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