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Eric and Megan Swope
 
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Default which will give more light

Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can put
in these housing is 150 watt. So in my basement now I have 2x150 watt light
bulb illuminating my area. My question is this, what will give me an
overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.


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RBM
 
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You can buy four light four foot florescent fixtures as well. You don't
determine light output by wattage. Find a chart on the net that gives you
the lumens of each type lamp you want to compare
"Eric and Megan Swope" wrote in message
news:Ibhoe.3219$zT2.1802@trndny04...
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can
put in these housing is 150 watt. So in my basement now I have 2x150 watt
light bulb illuminating my area. My question is this, what will give me
an overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.



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Edwin Pawlowski
 
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"Eric and Megan Swope" wrote in message
news:Ibhoe.3219$zT2.1802@trndny04...
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can
put in these housing is 150 watt. So in my basement now I have 2x150 watt
light bulb illuminating my area. My question is this, what will give me
an overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.


Incandescent bulbs are rated in both watts and lumens. While a higher watt
rating does make for more light, it is really a measure of power
consumption. Lumens in the light output. Compare the 150 watts with the
tubes. A regular 150 watt bulb puts out about.2100 lumens

http://www.news-press.com/apps/pbcs....plate=printart
42 Watt, 10,000 Hour Rated Life, 2650 Initial Lumens, Replaces 150 Watt
Soft-White Incandescent, Estimated 70% Energy Cost Savings vs. Incandescent,
Screw-in Base & Self-Ballasted Excellent CRI, Warm 2700K color


  #4   Report Post  
Andrew Gabriel
 
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In article Ibhoe.3219$zT2.1802@trndny04,
"Eric and Megan Swope" writes:
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can put
in these housing is 150 watt. So in my basement now I have 2x150 watt light
bulb illuminating my area. My question is this, what will give me an
overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.


One 40W fluorescent tube is going to be equivalent to something
around a 150W filament lamp. You can easily lose half the light
in the fitting with filament or fluorescent lamps, so a comparison
of the raw filament lamp verses raw fluorescent tube light output
won't necessarily give you the whole storey -- it will also depend
on the type and positioning of the light fitting.

--
Andrew Gabriel
  #5   Report Post  
Doug Miller
 
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In article Ibhoe.3219$zT2.1802@trndny04, "Eric and Megan Swope" wrote:
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can put
in these housing is 150 watt. So in my basement now I have 2x150 watt light
bulb illuminating my area. My question is this, what will give me an
overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.


Fluorescent lights are much more efficient, and emit a *lot* more light per
watt consumed, than incandescents. You'll probably get about twice as much
light from 160 watts of fluorescent tubes as from two 150-watt incandescent
bulbs.

Compare the rated lumens output on the packages, not the wattages, when
comparing fluorescents to incandescents - that's a measure of the actual light
output.

Bottom line: incandescent bulbs emit most of the energy they consume as heat,
while fluorescents emit most of it as light. If your objective is to heat your
basement, use incandescents. If you want to illuminate it, use fluorescents.

And if you prefer the yellow, "warm" glow of incandescent bulbs to the stark
white "cool" light of fluorescent tubes... get compact-fluorescent bulbs that
screw into a standard incandescent socket. Best of both worlds: warm glow, and
energy efficiency.



--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?


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m Ransley
 
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Incandesant bulbs output apx 17-19 Lpw, lumen per watt. Flourescent
screw in bulbs apx 50-70 lpw. Tube flourescent 60-110 Lpw, or 4-6
times the output of what you have. Actualy incandesants are heaters that
output 90% of their energy as heat and only 10% as light. Using a screw
in Cfl will up efficiency apx 4x, using tube T8 can up it 6 times. But a
recesed fixture will still loose you 50% of light output.

I will guess an exposed fixture of T8, electronic ballast of one 30
watt tube could equal those 2-150 watt bulbs you have, quite a savings
and it will last 5x longer. You can also run dimmers on certain
electronic ballasts for real control . Go to an electric supply store
for real info, but converting to T-8 electronic ballast, exposed fixture
is the way to go for light output and power savings.

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operator jay
 
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"Eric and Megan Swope" wrote in message
news:Ibhoe.3219$zT2.1802@trndny04...
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can

put
in these housing is 150 watt. So in my basement now I have 2x150 watt

light
bulb illuminating my area. My question is this, what will give me an
overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.



If you want dimmability, you could stick with incandescent. It is cheap and
easy to dim. By the way, if you do dim incandescents, even a little, they
will live way longer. But, as other people have said, fluorescent lamps
will put out much more light (lumens) per Watt. With an acrylic lens
recessed fluorescent fixture, you will probably get about half of the lumens
out of the fixture. I don't know what type of fixture your incandescent
lamp is in. If it's a bare bulb hanging down into your space, you will be
getting a lot of its lumens.

j


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Anthony
 
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"Eric and Megan Swope" wrote in
news:Ibhoe.3219$zT2.1802@trndny04:

Hi everyone. In my basement, I have a drop ceiling. In the spot
where I have the 2 clear tiles for lighting, instead of fluorescent
lights, the original homeowner pout in light housing for normal screw
in light bulbs that are nailed to the floor joists. The maximum watt
light bulb I can put in these housing is 150 watt. So in my basement
now I have 2x150 watt light bulb illuminating my area. My question is
this, what will give me an overall brighter basement, 2x150 watt light
bulbs, or if I buy two fluorescent worklights, each one holding 2x40
watt fluorescent tubes for a total of 4x40 watts (I believe the
brightest fluorescent tubes are only 40 watts?). I know simple math
seems to say the 300 watt total from the light bulbs would do it, but
I would say every 2 months or so one of the 150 watters blows out (we
use our basement a lot, so the lights can be on for hours at a time).
Cost of these bulbs isn't a major issue however, the lighting is more
so. Any advice is appreciated.



Concurring with the other posters, you could put (2) 4-bulb florescents
and have many x the lighting, and still just be using 160 watts of power.


--
Anthony

You can't 'idiot proof' anything....every time you try, they just make
better idiots.

Remove sp to reply via email

http://www.machines-cnc.net:81/
  #13   Report Post  
--
 
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You can select different incandescent and fluorescent bulbs with different
characteristics, so the answer is all over the place and always right. How
much light you get from a bulb depends on where you measure the light,
spatially and spectrally.
E.g, a 100 watt par 40 spot will have more and less light than a 100
watt par 40 flood and it can have more light at some illuminated areas than
do some 100 watt fluorescents.
There are standards as to the shape and distance used to get that bulb's
lumen/light reading on the package, but most bulbs don't track you around
the room, so you have to make a few decisions.

For the home, it is a bit simpler than choosing light commercially- many
books on the subject leave your head hurting over candela, lumens, lumens
per, temperature K, etc. - but the basics still apply:

Primary decision is what do you want to do in the space?
Usually, and obviously, it involves seeing detail (like sewing), or not
seeing so the imagination can fill in gaps (like in a club).
Hence there are dimmers in multi-use spaces on some overhead fixtures,
and there is incandescent spot lighting on tables and wall decorations mixed
with fixed fluorescent overhead area lighting.

Some guidelines -
- Seeing well requires 1) contrast and 2) proper kind of lumens on the
surface and 3) lack of conflicting contrast.
In other words, you see better with more light and less shadow, and it
also means that the less contrast you have (e.g., sewing dark on dark), the
more lumens you need. (The rule of thumb for commercial space is that a
10% decrease in contrast in the work requires a 100% increase in the lumens
on the surface.)

- often, where you put the light has more effect than how much. Spots vs.
floods, a 60 watt par 30 spot on a table vs. a 40 watt tube in an overhead
fixture, etc. and placing sources so there is little shadow and yet a light
source isn't in your eyes, either.

- bulb efficiency is measured in lumens per watt (almost always measured
at a voltage), and overall efficiency is measured including the cost of
changing the bulb - which is why a 130 volt bulb giving poor lumens per watt
(vs. the same 120 volt high lumen-per-watt bulb) is sometimes more
cost-efficient when the bulb is hard to get at.

Consider using several kinds of lighting to supplement the likely ceiling
fluorescents (avoid shop lights, imho), and consider adding low voltage
halogen spot lighting to the fluorescents, which often doesn't require the
same level of electrical work that a 120 volt installation does

---hope it helps

"Eric and Megan Swope" wrote in message
news:Ibhoe.3219$zT2.1802@trndny04...
Hi everyone. In my basement, I have a drop ceiling. In the spot where I
have the 2 clear tiles for lighting, instead of fluorescent lights, the
original homeowner pout in light housing for normal screw in light bulbs
that are nailed to the floor joists. The maximum watt light bulb I can

put
in these housing is 150 watt. So in my basement now I have 2x150 watt

light
bulb illuminating my area. My question is this, what will give me an
overall brighter basement, 2x150 watt light bulbs, or if I buy two
fluorescent worklights, each one holding 2x40 watt fluorescent tubes for a
total of 4x40 watts (I believe the brightest fluorescent tubes are only 40
watts?). I know simple math seems to say the 300 watt total from the light
bulbs would do it, but I would say every 2 months or so one of the 150
watters blows out (we use our basement a lot, so the lights can be on for
hours at a time). Cost of these bulbs isn't a major issue however, the
lighting is more so. Any advice is appreciated.




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