Get the sun into your dark space

Save on electric bill!

Bring a sustentaBle light using a soda bottle, a piece of metal, water, bleach and some sealant.

This solar bulb never heats up! (AND IT REALLY WORKS)

Step 1: A hole for the solar bulb

Punch a hole on a piece of metal roofing.
How does this not heat up? Wouldn't the bottle swell and eventually rupture? Don't think this would last long in the Florida sun, really rough on plastic.
this is used in very hot places, but if you are concerne you can use non retornable bottles that are heavyer
I missing something, Why the bleach?
also the bleach helps to make a wither light
Bleach helps prevent growth of algae in the closed bottle. This idea has been around for a while, it was posted almost a month ago <a href="http://www.instructables.com/id/How-to-build-a-SOLAR-BOTTLE-BULB/">here</a> and it was in the news way before then. But it is a great idea and so simple to do.

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