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Which kind of bleach (chemical name)did you use?
It does not reflect sunlight at night. http://www.instructables.com/id/How-to-build-a-SOLAR-BOTTLE-BULB/
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Which kind of bleach (chemical name)did you use?
It does not reflect sunlight at night.
http://www.instructables.com/id/How-to-build-a-SOLAR-BOTTLE-BULB/
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