This was done in Philippines. Water and bleach in bottle of coke was fitted on the roof. It absorbs and reflects sunlight and is equal to 55 watt ... Cheers to Engineers... YouTube :Bottle bulb Philippines
Manga artist and illustrator of epic comics at http://jigida.com. Lover of art, digital media, anime, and pre-colonial culture. Blogging my life (and loves) at http://sugabellyrocks.com. Igbo Nigerian par excellence. Artist, writer, and dreamer. Kwenu.
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