On Sun, 18 Oct 2020 22:34:56 +0100, Graeme wrote:

In message l.net,
Dave Liquorice writes

There doesn't look to be a very big bowl for the meths and it's quite a
way from the burner. A lighter thing might make lighting the lamp
quicker and easier.

My memories of proper Tilley lamps go back to Scout camps 50+ years ago.
Looking at the Tilley web site, the lighter thing is a 'pre-heating
torch' and memory suggests the main lamp fuel is paraffin, but the torch
is dipped in meths then lit, and clamped on the stem, below the mantle.
Much pumping to build up the pressure, remove the torch, lower the
glass, job done.

Same as a Primus stove. Heat the burner by burning meths, then when yiou
start to pump the paraffin vaporises and lights.

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

On 18/10/2020 18:28, T i m wrote:
What battery
has a 45 year shelf life with no loss of stored energy?

A lead-acid battery, as delivered dry. Just add acid!

Bill

On 19/10/2020 00:31, Bob Eager wrote:
Same as a Primus stove. Heat the burner by burning meths, then when yiou
start to pump the paraffin vaporises and lights.

If the vapour doesn't light, run away in case it suddenly does!

Bill

On 18/10/2020 16:34, T i m wrote:
https://tinyurl.com/yxa6avtz

I use a good quality caplamp. It would be fine for your 90 year old. It
provides illumination everywhere I need it because it's on my head.
Variable brightness, Runs for a very long time on one charge. Put it on
full brightness and point it at the ceiling and it illuminates the room.
Very very superior to the sub-£20 caplamps that are more common.

I'm not sure it would be superior to this:;-)

https://preview.tinyurl.com/yxlgnbv2

It would be far superior to that!

Bill

On 18/10/2020 20:39, Dave Liquorice wrote:
I use a good quality caplamp. It would be fine for your 90 year old. It
provides illumination everywhere I need it because it's on my head.
Does it have a varible beam width? It's all well and good having a
250 lumen beam that goes for 1/2 a mile or what ever but close up, a
few feet, you just have a very bright spot of light surrounded by
relative darkness.

Yes, you turn the body at the front and it goes from a very bright spot
(I can illuminate a cat, fox, owl, or rabbit brightly at 100 yards on my
nightly nocturnal walks) to a wide but even beam. I normally use it on
the minimum brightness setting as I walk because otherwise it's just too
bright when walking through pitch dark fields. The only thing I don't
like about it is that the rear red light doesn't flash. I've had many of
the sub-£20 caplamps and this is just so much better. At first I thought
£50 was a bit of a rip but after using the thing for a year I realise
the quality.
Incidentally, in my youth I used to install TV aerials in the winter
evenings, after my day job (school teacher), and my first cap lamps had
ex-NCB lead-acid batteries and headsets. Dreadful things. I eventually
progressed to home made caplamps using nicads and 6V prefocus bulbs.

Bill

On 18/10/2020 15:58, Jethro_uk wrote:
On Sun, 18 Oct 2020 15:48:37 +0100, williamwright wrote:

On 18/10/2020 11:00, Dave Liquorice wrote:
That's another partial solution but unless regulary tested the
batteries get cooked by being on constant "trickle charge".

This is an oft-repeated fallacy. A half decent intelligent charger won't
do this. I have just tested an 8Ah lead-acid that's been on charge since
August 2014 with breaks and discharge only when we've had power cuts,
and it's fine. Comes out at 5Ah when discharged at 250mA which I think
is good enough.

Over the years I've spent a fortune on so called intelligent chargers.
All I have to show for it is a pile of failed rechargeables

I think they're better with larger lead-acid than small batteries.


Obviously cheap chargers are a different kettle of fish entirely. I
recently encountered a wall-wart style thing that had unconditional
no-load voltage of 16.3V. It had killed a 12V lead-acid.

How about UPS ? I gave up after having to buy a 3rd SLA battery for my
UPS in 6 years. Never once actually used when the power failed, just sat
there slowly ballooning.

I used to use UPSes to reduce problems with banks of sky boxes at
'critical' head ends (those serving systems where the reaction of the
residents to a failure of sky reception might be to murder each other).
The UPSes were fairly up market, (cost being no object in view of the
murdering each other issue) and I didn't have much trouble with battery
failures. That could be because the UPSes tended to be replaced every
few years anyway.

Bill

On Mon, 19 Oct 2020 00:47:08 +0100, williamwright wrote:

What battery has a 45 year shelf life with no loss of stored
energy?

A lead-acid battery, as delivered dry. Just add acid!

Some hazy memory that they can be delivered dry and just add water
but as sulphuric acid is a liquid that could well be wrong.

You'd have to construct the plates of lead dioxide and lead for the
addition of the acid (of the right concentration) to produce a
charged battery. That shouldn't a be a problem though.

--
Cheers
Dave.

On Mon, 19 Oct 2020 01:01:31 +0100, williamwright wrote:

Does it have a varible beam width? It's all well and good having a
250 lumen beam that goes for 1/2 a mile or what ever but close up,
a
few feet, you just have a very bright spot of light surrounded by
relative darkness.

Yes, you turn the body at the front and it goes from a very bright spot
(I can illuminate a cat, fox, owl, or rabbit brightly at 100 yards on my
nightly nocturnal walks) to a wide but even beam.

That's good, I don't go lamping though. B-)
Nor can I justify £50 for it.

I normally use it on the minimum brightness setting as I walk because
otherwise it's just too bright when walking through pitch dark fields.

I find truely pitch dark doesn't happen all that often, there's
nearly always some moon and/or starlight. Enough to avoid walking
into things. I find I need illumination more when in town between the
sparse streetlights than out on the fields, the street lights ruin
your night vision.

--
Cheers
Dave.

On 19/10/2020 10:22, Dave Liquorice wrote:
I find truely pitch dark doesn't happen all that often, there's
nearly always some moon and/or starlight. Enough to avoid walking
into things. I find I need illumination more when in town between the
sparse streetlights than out on the fields, the street lights ruin
your night vision.

Indeed.And its possible to move in complete darkness as well. As any
blind person can tell you. Echoes of your own breathing bounce off
nearby hard objects, and by lifting your feet way up to avoid tripping
on low stuff, you can even run reasonably well.

--
Its easier to fool people than to convince them that they have been fooled.
Mark Twain

On 18/10/2020 23:44, Radio Man wrote:
T i m wrote:
On Sun, 18 Oct 2020 20:29:31 +0100 (BST), "Dave Liquorice"
wrote:

On Sun, 18 Oct 2020 18:28:27 +0100, T i m wrote:

I have some Colemans spirit here that I hope is still sufficiently
spirity, ready should I need to press my Tilley lamp into action [1].

[1] I had a quick look on the Tilley web site and realised I don't
believe I have the lighter thing. I think I've just poured spirit into
the cup bit and lit it that way (or was it meths)?

Isn't "Colemans spirit" a refined petrol like fuel?

Ah yes, you are right Dave, digs out my lamp it goes with my
'Coleman Duel Fuel Lamp'. doh ;-)

https://www.coleman.eu/uk/p-22749-po...e-lantern.aspx

Pretty sure
Tilley lamps run off parrafin, some what less volatile and meths to
preheat the lamp.

And that would all make sense (why I didn't remember having the little
meths container and pre lighter thing).

There doesn't look to be a very big bowl for the meths and it's quite
a way from the burner. A lighter thing might make lighting the lamp
quicker and easier.

Agreed.

I'll fire my lamp up when I get a moment, just to make sure it's still
ok etc. I note one of the mantels [1] is damaged but is still on one
piece as such.

Cheers, T i m

[1] No wonder I said it was bright! Apparently it's rated as being
200W, versus the 60W of a Tilley lamp.




Tilley and Coleman lamps tend to give about the same illumination Colemans
are easier to light had both over the years. Neither are ideal for an
elderly person- pumping, fire risk. Id recommend one or more of the LED
wand lights aimed at mechanics which are rechargeable via USB. Good light
you can leave on charge until needed attach to a tin box via the magnet in
the base to make a table light etc. Several hours off one charge.

quite right brian you like colman stuff don't you .....

On Mon, 19 Oct 2020 00:47:08 +0100, williamwright
wrote:

On 18/10/2020 18:28, T i m wrote:
What battery
has a 45 year shelf life with no loss of stored energy?

A lead-acid battery, as delivered dry. Just add acid!

;-)

Cheers, T i m

On Mon, 19 Oct 2020 00:51:55 +0100, williamwright
wrote:

On 18/10/2020 16:34, T i m wrote:
https://tinyurl.com/yxa6avtz

I use a good quality caplamp. It would be fine for your 90 year old. It
provides illumination everywhere I need it because it's on my head.
Variable brightness, Runs for a very long time on one charge. Put it on
full brightness and point it at the ceiling and it illuminates the room.
Very very superior to the sub-£20 caplamps that are more common.

I'm not sure it would be superior to this:;-)

https://preview.tinyurl.com/yxlgnbv2

It would be far superior to that!

On what grounds though?

Is it lighter?

Is it instantly adjustable between any head size and anything else you
wanted to fit it to?

Does it take dry cells?

Is it cheaper?

How well would it fit if Mum had her hair in a bun?

Could she carry hers in a small pocket in case of a power cut?

Cheers, T i m

On Mon, 19 Oct 2020 10:10:35 +0100 (BST), "Dave Liquorice"
wrote:

On Mon, 19 Oct 2020 00:47:08 +0100, williamwright wrote:

What battery has a 45 year shelf life with no loss of stored
energy?

A lead-acid battery, as delivered dry. Just add acid!

Some hazy memory that they can be delivered dry and just add water
but as sulphuric acid is a liquid that could well be wrong.

You'd have to construct the plates of lead dioxide and lead for the
addition of the acid (of the right concentration) to produce a
charged battery. That shouldn't a be a problem though.

I believe that's how they do make them in any case Dave, for 'wet'
batteries in any case, if my memories of going round the Chloride
factory don't fail me.

The plate grids are packed with one of two lead pastes, baked(?) and
then formed up into a dry battery. Sulphuric acid of the right SG can
then be added at any time after and the battery 'activated'.

Up until quite recently, most of the motorcycle batteries I've bought
came as a 'kit' with 6 files of acid in a module that you simply
invert over the dry battery, allow it to fill, settle, then it's ready
to go, although they generally recommend a bench charge if you can.

Cheers, T i m

On 17/10/2020 21:52, T i m wrote:
I popped past Mums earlier and she's given me a couple of old torches
to look at because she has seen mention of power cuts and 'she tried
all the torches and none of them worked'.

So, whilst I'm sure I can get them working, they are likely
incandescent and so probably not give the best run-time for the size
etc.

Now she's probably forgotten I gave her at least 3 of those plug in
rechargeable movement detection / torches (that I think come on
automatically if the power fails) but I wondered if anyone had an
recommendations / thoughts for a decent 'lamp', something that would
light up a room but that she could carry / reposition that would last
a good few hours please?

Again, I'm looking for something someone here has had personally
experience of and thought / thinks was a good bit of kit.

Reliable, easy to operate, light ish (she's still pretty able for a
90yr old so it doesn't have to be featherweight but nothing based on a
car battery). ;-)

I've got a genuine Tilley lamp and know it puts out a fair bit of
light [1] but not something I want Mum playing with. ;-)

I also know you can get things that look like Tilley lamps but are LED
based but didn't need that 'style' if it was just a gimmick, a play on
the real lamp etc.

Cheers, T i m

[1] The last time we used the real Tilley lamp was at the after party
at an 'Arb' show and it lit up a large gazebo thing for about 20
people with no issues. ;-)

I like this type of thing

https://www.screwfix.com/p/luceco-le...t-10w-5v/5276k

Robust, adjustable, easy to carry, good capacity, and being Li-Ion
should hold its charge. I keep one inside the workshop door, I sling it
in the van if I am taking tools somewhere. I guess I use it several
times a year, but probably only recharge it two or three times a year.

Aldi/Lidl have them periodically, I think I got mine when SF had them on
sale, around £15 iirc. I have had it for several years.

The Natural Philosopher formulated on Monday :
Echoes of your own breathing bounce off nearby hard
objects, and by lifting your feet way up to avoid tripping on low stuff, you
can even run reasonably well.

Only until you meet a deep and unseen in the dark, large drop.

In article ,
newshound wrote:
I like this type of thing

https://www.screwfix.com/p/luceco-le...t-10w-5v/5276k

Robust, adjustable, easy to carry, good capacity, and being Li-Ion
should hold its charge. I keep one inside the workshop door, I sling it
in the van if I am taking tools somewhere. I guess I use it several
times a year, but probably only recharge it two or three times a year.

Similar to the one I bought from Lidl some times ago. And very useful.
Only thing I wish was the charger was built in, rather than being a wall
wart. Perhaps with an IEC mains lead.

--
*WHERE DO FOREST RANGERS GO TO "GET AWAY FROM IT ALL?"

Dave Plowman London SW
To e-mail, change noise into sound.

On 19/10/2020 15:28, Harry Bloomfield wrote:
The Natural Philosopher formulated on Monday :
Echoes of your own breathing bounce off nearby hard objects, and by
lifting your feet way up to avoid tripping on low stuff, you can even
run reasonably well.

Only until you meet a deep and unseen in the dark, large drop.

Not many of those around and even those you sort of can sense by the
sound of the echoes.

Or even subtle temperature or wind changes...

Try it sometime...we are not as 'blind' as we think we are.




--
Climate Change: Socialism wearing a lab coat.

In article ,
Dave Plowman (News) wrote:
In article ,
newshound wrote:
I like this type of thing

https://www.screwfix.com/p/luceco-le...t-10w-5v/5276k

Robust, adjustable, easy to carry, good capacity, and being Li-Ion
should hold its charge. I keep one inside the workshop door, I sling it
in the van if I am taking tools somewhere. I guess I use it several
times a year, but probably only recharge it two or three times a year.

Similar to the one I bought from Lidl some times ago. And very useful.
Only thing I wish was the charger was built in, rather than being a wall
wart. Perhaps with an IEC mains lead.

For the manufacturer , it is only the wallwart that needs safety testing. A
built in power unit might mean different tests for different countries.

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

On Mon, 19 Oct 2020 15:43:01 +0100, "Dave Plowman (News)"
wrote:

In article ,
newshound wrote:
I like this type of thing

https://www.screwfix.com/p/luceco-le...t-10w-5v/5276k

Robust, adjustable, easy to carry, good capacity, and being Li-Ion
should hold its charge. I keep one inside the workshop door, I sling it
in the van if I am taking tools somewhere. I guess I use it several
times a year, but probably only recharge it two or three times a year.

Similar to the one I bought from Lidl some times ago. And very useful.
Only thing I wish was the charger was built in, rather than being a wall
wart. Perhaps with an IEC mains lead.

Funnily enough, I dug out a pair of those (they were daughters for
when doing tree work in the winter) and charged and used them the
other day and they are 'ok', for working.

Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.

She gave me a bag of 4 torches to fix the other day.

One (a red one with handle, Ever Ready) just needed a battery, one of
those big square ones with the springs on, 4R25, that I happened to
have and still reads 6+V. It has a 4.75V x .5A flange type lamp and
I've ordered an LED replacement.

Another 'Lomax' brand looks to have 4 very corroded D sized batteries
in it (so I need to get some vinegar), and 4 x D cells. T think it
takes the same lamp as the first one so I'll try the one I get in that
and see what the light level and pattern is like and may get another.

The third is a pocket sized Brookstone branded multi-LED torch, that
takes 3xAAA in a little carrier that is a bit corroded but should be
recoverable.

The last is another pocket sized torch that looks like it can have one
or 3 LED's on and takes a CR123A ... and I've ordered a couple.

Normally I wouldn't bother with anything that is too far gone (other
than for the S&G's) but these were probably all bought by Dad and so
the chances are Mum would like to see them going if possible.

Quite a few people seem to have bought these, like them and they look
to cover all bases ...

https://preview.tinyurl.com/yysfmbsv

For another fiver they do a rechargeable version but like others I'm
not sure about rechargeable and 'emergency'?

Cheers, T i m

The Natural Philosopher was thinking very hard :
Not many of those around and even those you sort of can sense by the sound of
the echoes.

Or even subtle temperature or wind changes...

Try it sometime...we are not as 'blind' as we think we are.

I'm not a bat :-)

On 19/10/2020 15:43, Dave Plowman (News) wrote:
In article ,
newshound wrote:
I like this type of thing

https://www.screwfix.com/p/luceco-le...t-10w-5v/5276k

Robust, adjustable, easy to carry, good capacity, and being Li-Ion
should hold its charge. I keep one inside the workshop door, I sling it
in the van if I am taking tools somewhere. I guess I use it several
times a year, but probably only recharge it two or three times a year.

Similar to the one I bought from Lidl some times ago. And very useful.
Only thing I wish was the charger was built in, rather than being a wall
wart. Perhaps with an IEC mains lead.

Mine just plugs into a micro-usb phone charger. Since I have any number
of these these scattered around everywhere it's less hassle than hunting
for a mains lead. (One undeniable benefit of EU standards).

I have a couple of "camping lights" that are a bit like this

https://www.ebay.co.uk/itm/3-Mode-LE...AOSwVHRcrEU M

at the stables (no mains power), these have micro USB sockets for
charging them, but also a Type A socket that lets them charge a phone if
that has run out. Not so suitable for domestic use as you need somewhere
to hang them.

Jim GM4 DHJ ... wrote:
On 18/10/2020 23:44, Radio Man wrote:
T i m wrote:
On Sun, 18 Oct 2020 20:29:31 +0100 (BST), "Dave Liquorice"
wrote:

On Sun, 18 Oct 2020 18:28:27 +0100, T i m wrote:

I have some Colemans spirit here that I hope is still sufficiently
spirity, ready should I need to press my Tilley lamp into action [1].

[1] I had a quick look on the Tilley web site and realised I don't
believe I have the lighter thing. I think I've just poured spirit into
the cup bit and lit it that way (or was it meths)?

Isn't "Colemans spirit" a refined petrol like fuel?

Ah yes, you are right Dave, digs out my lamp it goes with my
'Coleman Duel Fuel Lamp'. doh ;-)

https://www.coleman.eu/uk/p-22749-po...e-lantern.aspx

Pretty sure
Tilley lamps run off parrafin, some what less volatile and meths to
preheat the lamp.

And that would all make sense (why I didn't remember having the little
meths container and pre lighter thing).

There doesn't look to be a very big bowl for the meths and it's quite
a way from the burner. A lighter thing might make lighting the lamp
quicker and easier.

Agreed.

I'll fire my lamp up when I get a moment, just to make sure it's still
ok etc. I note one of the mantels [1] is damaged but is still on one
piece as such.

Cheers, T i m

[1] No wonder I said it was bright! Apparently it's rated as being
200W, versus the 60W of a Tilley lamp.




Tilley and Coleman lamps tend to give about the same illumination Colemans
are easier to light had both over the years. Neither are ideal for an
elderly person- pumping, fire risk. Id recommend one or more of the LED
wand lights aimed at mechanics which are rechargeable via USB. Good light
you can leave on charge until needed attach to a tin box via the magnet in
the base to make a table light etc. Several hours off one charge.

quite right brian you like colman stuff don't you .....


Is that another of your mushroom claims which is just a lie about Brian.

In article ,
T i m wrote:
Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.

Bounce them off the ceiling.

--
*I'm pretty sure that sex is better than logic, but I can't prove it.

Dave Plowman London SW
To e-mail, change noise into sound.

On 19/10/2020 13:51, T i m wrote:
It would be far superior to that!

On what grounds though?

Brighter, longer lasting, generally more lovely.

Is it lighter?

No but it isn't heavy enough to matter. It weighs less than a full
bladder so should be insignificant for any old person.

Is it instantly adjustable between any head size and anything else you
wanted to fit it to?

Yes absolutely. I fit mine to children, and also to the backs of chairs,
fence posts, and other temporary supports, in order to photograph
fungus, copulating invertebrates, and other interesting things, at night.


Does it take dry cells?

Good grief no. That would be pointless. Too much fumbling.


Is it cheaper?

€œThe cynic knows the price of everything and the value of nothing.€� Wilde


How well would it fit if Mum had her hair in a bun?
It fits over a hard hat. I can't say for sure about a bun because I
don't have one.


Could she carry hers in a small pocket in case of a power cut?
Yes, I put mine in my jeans back pocket on the way to the pub if I'll be
coming back at dusk.

Bill

Cheers, T i m

On 19/10/2020 10:22, Dave Liquorice wrote:
I find truely pitch dark doesn't happen all that often, there's
nearly always some moon and/or starlight.

When there's low cloud I get no illumination from the heavens, and very
little from the nearby cities. Since I walk in fields often occupied by
livestock I really like to see where I'm placing my feet.

I have noticed that on a wet night there's more light reflected up to
the clouds in the urban areas.

A few evenings ago we appeared to have two sunsets, about 75 deg apart.

Bill

On 19/10/2020 10:28, The Natural Philosopher wrote:
Indeed.And its possible to move in complete darkness as well. As any
blind person can tell you. Echoes of your own breathing bounce off
nearby hard objects, and by lifting your feet way up to avoid tripping
on low stuff, you can even run reasonably well.

--

Just mind your eyes and goolies on the barbed wire, and wear a wetsuit
for when you come to a dyke.

Bill

On 19/10/2020 16:34, The Natural Philosopher wrote:
On 19/10/2020 15:28, Harry Bloomfield wrote:
The Natural Philosopher formulated on Monday :
Echoes of your own breathing bounce off nearby hard objects, and by
lifting your feet way up to avoid tripping on low stuff, you can even
run reasonably well.


**** me, what a crazy idea!

"How come you fell down the forty foot cliff?"

"Well, I normally avoid such things by listening for the echoes of my
own breathing, but for some inexplicable reason I missed this one."

"Do you have a carer that we can contact? How did you escape by the way?"

Bill

On 20/10/2020 00:14, Dave Plowman (News) wrote:
Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.
Bounce them off the ceiling.

Dave means, "Bounce the light off the ceiling."

Bill

On Tuesday, 20 October 2020 02:44:17 UTC+1, williamwright wrote:
Bounce them off the ceiling.
Dave means, "Bounce the light off the ceiling."

I assume Dave meant "bounce the light beam off the ceiling", not the light.

Or the older person.

Owain

On Tuesday, 20 October 2020 02:25:11 UTC+1, williamwright wrote:
It weighs less than a full bladder so should be insignificant
for any old person.

A full bladder is never insignificant for an old person.

Only the other week I found myself considering, shall I have a wee in Asda or can I make it to Tesco? And who has the nicer toilets?

Owain

On Tue, 20 Oct 2020 02:34:36 +0100, williamwright wrote:

I find truely pitch dark doesn't happen all that often, there's
nearly always some moon and/or starlight.

When there's low cloud I get no illumination from the heavens, and very
little from the nearby cities.

Low cloud here and there's no light from "nearby" cities. Without
local artificial light it's absolutely pitch black. Nearest street
lights are a mile and half away and mostly hidden from view.

Since I walk in fields often occupied by livestock I really like to see
where I'm placing my feet.

Cow pats are dark roundish patches against the lighter grass under
star/moonlight. B-)

I have noticed that on a wet night there's more light reflected up to
the clouds in the urban areas.

If you know where to look the sky glow from Carlisle is just a small
blob on the horizon. Teeside 50 miles away is the worst offender.
That can, under the right conditions, light up the best part of the
ESE quadrant. On a really clear night though that sky glow is almost
no existant. We have some of the darkest sky in England. B-)

--
Cheers
Dave.

On Tue, 20 Oct 2020 02:25:06 +0100, williamwright
wrote:

On 19/10/2020 13:51, T i m wrote:
It would be far superior to that!

On what grounds though?

Brighter,

Only needs to be 'bright enough.

longer lasting,

Only needs to last as long as a power cut.

generally more lovely.

;-)

Is it lighter?

No but it isn't heavy enough to matter. It weighs less than a full
bladder so should be insignificant for any old person.

A full bladder on someone's head for several hours?

Is it instantly adjustable between any head size and anything else you
wanted to fit it to?

Yes absolutely.

So, the strap is elastic?

I fit mine to children,

Do they mind?

and also to the backs of chairs,
fence posts, and other temporary supports, in order to photograph
fungus, copulating invertebrates, and other interesting things, at night.

So by 'fit' that sounds like a specific action? On the Petzl you just
pull the expanding strap out the size of the chair upright, child's
head or adults head or *anything* in-between?


Does it take dry cells?

Good grief no. That would be pointless. Too much fumbling.

Except you *can* change them in a power cut.


Is it cheaper?

“The cynic knows the price of everything and the value of nothing.” Wilde

'A fool and his money are soon parted'. Tusser. ;-)


How well would it fit if Mum had her hair in a bun?

It fits over a hard hat. I can't say for sure about a bun because I
don't have one.

;-)


Could she carry hers in a small pocket in case of a power cut?

Yes, I put mine in my jeans back pocket on the way to the pub if I'll be
coming back at dusk.

You must have very big / baggy jeans Bill as the lamp alone looks to
be about the same size as the Petzl *plus* you then have the battery
pack, strap and cable, or am I looking at the wrong model?

Ledlenser 7297TP, 50 reviews, 3.6 stars.
https://tinyurl.com/yxa6avtz
250 lumens, 340g, max 30 hours.

It seems to suggest it uses 4xAAA so have you got one with a
rechargeable battery pack (also available for the Petzl of course).

Petzl Zipka, 260 reviews, 4.8 stars.
https://tinyurl.com/yxeogmyr
300 lumens, 66g, max 120 hours.

;-)

Cheers, T i m

On Tue, 20 Oct 2020 00:14:01 +0100, "Dave Plowman (News)"
wrote:

In article ,
T i m wrote:
Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.

Bounce them off the ceiling.

Yeah, but that means that somewhere in the room you have a beam of
light going up like a searchlight and even if on a coffee table (let
alone the floor, ready to become a trip hazard when it just cuts off
when it goes flat), mot nice to look into (and you generally do), when
compared with the diffused mostly horizontal light from a 'lantern'
etc.

Like this:
https://preview.tinyurl.com/y6gmeosq

Cheers, T i m

In article ,
williamwright wrote:
On 20/10/2020 00:14, Dave Plowman (News) wrote:
Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.
Bounce them off the ceiling.

Dave means, "Bounce the light off the ceiling."

If you wish to add words when the meaning is clear to most, yes. ;-)

It's what lamps do - produce light. The units themselves don't normally
bounce that well.

--
*Being healthy is merely the slowest possible rate at which one can die.

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 20 Oct 2020 10:34:32 -0000 (UTC), Jethro_uk wrote:

Following this thread, I received yesterday:

https://www.amazon.co.uk/gp/product/B08GS24J33

Which for less than £15 ain't bad.

Not quite sure how to read:

"After testing, every 3 batteries can be used for 30 days, which is
very Durable and safe."

I hope that doesn't mean replacing the batteries every 30 days when
only in "standby". 30 days "on", even in 20 second bursts, seems
rather long (720 hours) from 3 alkaline x AAA's.

--
Cheers
Dave.

Dave Liquorice has brought this to us :
"After testing, every 3 batteries can be used for 30 days, which is
very Durable and safe."

I hope that doesn't mean replacing the batteries every 30 days when
only in "standby". 30 days "on", even in 20 second bursts, seems
rather long (720 hours) from 3 alkaline x AAA's.

I think it probably does mean that, I assume they use PIR detection to
sense a 'body', to turn on.

williamwright wrote:
On 20/10/2020 00:14, Dave Plowman (News) wrote:
Yes they would give you good emergency lighting but a bit directional
and harsh for an all evening emergency light for Mum.
Bounce them off the ceiling.

Dave means, "Bounce the light off the ceiling."

Bill

When I made my own LED lighting for the kitchen,
that's how it works. Off the ceiling. 3W of DC worth.
Maybe around 240 lumens. Enough light to make tea.

And there's a limit as to how much light you can
bounce off the ceiling, before the glare from it
gets you. I have some LED floods, that are too "hot"
to do that.

Paul

On Tue, 20 Oct 2020 12:29:13 +0100, Harry Bloomfield wrote:

"After testing, every 3 batteries can be used for 30 days, which
is
very Durable and safe."

I hope that doesn't mean replacing the batteries every 30 days
when
only in "standby". 30 days "on", even in 20 second bursts, seems
rather long (720 hours) from 3 alkaline x AAA's.

I think it probably does mean that, ...

Which? Replace every 30 days or total "on" of 30 days?

I assume they use PIR detection to sense a 'body', to turn on.

Yes, just like the similar Aldi ones I have that run off 3 x AA's and
are still on the supplied alakaline batteries after a year. There is
a small 6(?) pin chip in them to which everything is connected the
PIR module, LDR etc. I expect all these similar motion lights utilse
the same chip and have basically the same battery life for the size
of batteries.

Guess we'll find out in 30 days (ish) when the OP has or hasn't had
to replace his batteries...

--
Cheers
Dave.

On 20/10/2020 09:56, T i m wrote:
So, the strap is elastic?

Yes, and adjustable. I should think they all are so they grip the bonce.

Bill

In article ,
Paul wrote:
And there's a limit as to how much light you can
bounce off the ceiling, before the glare from it
gets you. I have some LED floods, that are too "hot"
to do that.

You must be very unhappy outdoors. ;-)

--
*I'm out of my mind, but feel free to leave a message.

Dave Plowman London SW
To e-mail, change noise into sound.