OT: lighting for shops in a cold climate

Is it true that incandescent lamps will become obsolete in the near future? If so, how will folks get light into a cold building where flourescents
don't come on?
Pete Stanaitis -----------------
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Pete S wrote:

Stock up on torches and matches? Then make metal wall holders for them. :)
--
It's easy to think outside the box, when you have a cutting torch.

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On Sat, 4 Jun 2011 13:43:07 -0500, "Pete S"

Smoke and mirrors?
-- Experience is a good teacher, but she send in terrific bills. -- Minna Thomas Antrim
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On Sat, 4 Jun 2011 13:43:07 -0500, "Pete S"

Second thought:
Despite the mispelung, I grokked your meaning. How about: a bunch of light tubes, fiber optic cables with lamps at the other end, or EL tubes?
-- Experience is a good teacher, but she send in terrific bills. -- Minna Thomas Antrim
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On 6/4/2011 11:43 AM, Pete S wrote:

For one option, halogen lamps will still be available. They put out lots of light.
Paul
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On Sat, 04 Jun 2011 13:43:07 -0500, Pete S wrote:

LED lighting is probably the long-term solution; LED's work just fine in cold environments, except for being expensive. They are efficient (eg, Wind Cave's electrical bill dropped a lot: <http://www.rapidcityjournal.com/news/article_ad6883f2-a817-11df-8d65-001cc4c002e0.html ) and "green" (eg, NPS and/or its Xanterra contractor have installed a bunch of LED's in shops and visitor centers in Yellowstone and Yosemite, and for the Liberty Bell: <http://www.paramuspost.com/article.php/20110531142443630 ).
For fluorescents, "Cold weather ballasts that can start the lamps at temperatures below 0°F should be specified for applications where the ambient temperature is expected to be below 50°F. Cold weather electronic and magnetic ballasts can be specified for HO and VHO lamps that can start them at temperatures as low as -20°F.", per <http://www.lightsearch.com/resources/lightguides/environments.html and also see <http://members.misty.com/don/f-lamp.html#sb2 .
The 750 watts of fluorescent lighting (with ordinary magnetic ballasts) in my garage works ok at 20F; if it's much colder than that, I work somewhere else.
--
jiw

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On Sat, 4 Jun 2011 13:43:07 -0500, "Pete S"
In Europe, many of them are already illegal. This is a political decision.

Turn them on in the summer and leave them burning all winter. That way, you also get a little heat to help keep your tools rust free.
--
RoRo

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wrote:

There are cold-start fluorescents for use outdoors and in cold buildings. Check with a lighting shop.
--
Ed Huntress



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On Sat, 4 Jun 2011 16:41:35 -0400, "Ed Huntress"

The cold starts don't work if it gets to 20 below. Now, its colder than a witches tit AND you can't see. So, I move to FL when its this cold.
Karl
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wrote:

Neither do I. <g>
I think they'll handle most situations, though. I put one of the new outdoors screw-ins in my porch light last fall, and it started just fine all winter. But it doesn't get that cold here.
--
Ed Huntress

>Now, its colder
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Pete, just went through this scenario with my shop (Eastern TN). I settled on T-5 HO 6 tube fixtures, 54 watts ea, electronic ballast. Electric supplier has them in his warehouse and said there is no problem with instant start in zero degree temps. Hope this helps. Bill
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wrote:

I replaced all exterior lighting with 50 W halogen flood light bulbs which work fine for me. Gerry :-)} London, Canada
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It is not entirely true. The law basically mandates that bulbs which put out light similar to current 40 watt through 100 watt have to be as efficient as halogen bulbs are now. So for cold weather you can use halogen, and in the very near future LED lamps will drop in price enough to be a no-brainer. The law still allows exception for all sorts of decorative or specialized bulbs.
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I've never had fluorescents fail to come on. The might be a bit slow, I'm using older technology with mag start ballasts and the larger tubes, I live near 45N in michigan. We occasionally get some cold weather from time to time.
Fwiw, waste heat isn't waste 6 months out of the year up here. Your mileage may differ in California where cooling is more of an HVAC issue.
Wes
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On Sun, 05 Jun 2011 08:28:21 -0400, Wes

When I operated a facility in a low heat (above freezing) facility, I found that I could initiate light by sweeping a corn broom along the tubes. Gerry :-)} London, Canada
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    [ ... ]

    If you want an extreme example of this -- wire up a PR-2 flashlight bulb (3V) to the 120 VAC line. You will get a very brief bright flash, and the bulb will turn into a mirror -- silvered on the inside by the evaporated filament.
    I did this decades ago (about 1960 IIRC) and didn't have the tools which I now have. It would be interesting to see an oscilloscope trace of the flash, and to compare it to another identical filament, but in a much larger enclosure, to see whether the coating starts dimming the output before the filament totally dies.
    Enjoy,         DoN.
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Gerald Miller wrote:

It snows around here, but I've never seen a driving snow storm in North Central Florida. :)
The LED traffic lights around here also generate so much RFI that AM radio is useless. Any signal from the BCB to 30 MHz is either full of noise from the switching power supplies, or below that noise floor. Reception was great during and right after the hurricanes a few years ago.
--
It's easy to think outside the box, when you have a cutting torch.

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