Nice jugaar to save on electricity during the day.
The video examines how a village in Brazil gets cheap lighting with a simple, smart water bottle hack. It's a pretty inspiring watch, and you can't help but love the trash can demonstration. At the risk of pointing out the obvious, this will, of course, only work when you've got daylight, but you can always switch to electricity after dark. I'll go out on a limb and say this may not be practical for lighting your whole home, but this green idea seems perfect for lighting your garage or work shed on the cheap.