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Old 07-19-2010, 02:36 PM   #1
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Glass Coke Bottle lamp?


Hello,

I want to make a bright lamp with a glass coca cola bottle.

I have a 50 watt 12v Halogen Tungsten Bulb, some wiring, a switch and 12v batteries.

I've been told that Halogen bulbs generate a lot of heat and emits UV rays, so this is not such a good idea.

Does anyone have any suggestions for me?

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Old 07-19-2010, 02:45 PM   #2
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Glass Coke Bottle lamp?


DC? 50 watt bulb? Probably not a problem. Though you may want to post a design here to show setup, venting if needed, etc.

Using 110v AC and a 500w bulb, I'd worry a bit..... THOSE get pretty hot!

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Old 07-19-2010, 10:04 PM   #3
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Glass Coke Bottle lamp?


Quote:
Originally Posted by tinx View Post
UV rays
Yes, puck lights have a UV glass filter. Maybe the bottle glass reduces UV somewhat, it's certainly thick enough.
These guys
http://scientificsonline.com/
may have UV filters but I don't what a safe level of UV is. The intensity of sunlight?
http://en.wikipedia.org/wiki/File:Solar_Spectrum.png
The lamp maker knows.

The lamp pulls 4 A so a 40 Amp-Hour battery would give you 10 hours or less of runtime. The switch has to stand a 40 A surge for a few dozen milliseconds until the filament heats. It's a "tungsten load," slightly less stressful than a "motor load."

50 W distributed over the surface area of a Coke bottle should hardly warm it but the bulb may be designed to run in a free-air environment.

Last edited by Yoyizit; 07-19-2010 at 10:18 PM.
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