Turn a 2-Liter bottle into a 50 watt lightbulb (w/ video), page 5
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reply posted on 5-11-2009 @ 04:50 PM by libertytoall
It's sort of a cheesy version of a sun tube.

www.sun-dome.com...

You can get up to 2000 watts equivalent light with a real sun tube over the 50 watts with a plastic bottle filled with water.


reply posted on 5-11-2009 @ 10:41 PM by ByteChanger
Originally posted by HotSauce
reply to
post by Scooby Doo



... They said something about water, bleach, and some sort of film cover. Can you explain how they are made? I might give it a try this weekend.


Hi HotSauce.

Basically, you get a 2 liter bottle. Fill it with clean water. Add 2 caps full of bleach to the water. Screw on cap. Then take a old black film canister (light proof) and cover the pop bottles cap to protect it from the sun.

The guy in the garage said he had them going for 2 years and no maintenance. I also imagine they are sealed (caulked) into the ceilings so they don't leak. So, once installed, you don't want to have to mess with it much...

Pretty neat idea.
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