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Unread 09-11-2011, 12:50 PM
 
Location: North Cackelacky....in the hills.
19,555 posts, read 9,437,125 times
Reputation: 2433
Default Solar light from a soda bottle.

Only works during the day,but it is free.

Cheap Solar Lighting with a Two Liter Water Bottle – Sustainablog


Use a 2-Liter Bottle as a 50 Watt Light Bulb lightbulb hack - YouTube
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Unread 09-16-2011, 09:32 AM
 
Location: Wake County, NC
831 posts, read 492,105 times
Reputation: 287
Interesting ... would be a good solution in an adobe structure!
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Unread 09-16-2011, 03:49 PM
 
Location: SW Kansas
1,567 posts, read 1,634,869 times
Reputation: 1069
That is really neat!
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Unread 09-16-2011, 07:49 PM
 
1,339 posts, read 308,650 times
Reputation: 656
I wonder how often you have to get up on the roof to replenish the bleach, which probably chemically breaks down.
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