Okay, this is pretty cool. A guy in Brazil figured out how to make a skylight out of used pop bottles.

It sounds a little crazy, and maybe looks a little ghetto, but the results are actually amazing. Each plastic bottle gives as much light as a 50 watt light bulb. Don’t believe me? Watch this video until the end, when they take the buckets off the water bottles. It will blow your mind.

The quality of light from the skylights is so much better than from the regular light bulbs she had on before that. And the whole idea is pretty great: they’re essentially made from trash (plastic bottle, film canister and a little bleach), and they have zero electricity cost to run. They might not give you light all the time when you would need it (at night for example), but even if they could keep you from using lights during the day, they’d be a pretty significant cost saver.

I’m not saying we should all be installing these, but they do have a time and a place. Obviously the people in the video seem pretty happy with them!

Link via Sara