I've been looking around and contemplating this.. I think it would be a cool way to convert unused light back into power to use for growing. Im thinking possibly a small panel on one wall of the grow or something? any ideas? anyone tried them? kinda like this one?
http://www.envirogadget.com/solar-powered/solar-powered-room-fan-with-adjustable-solar-panel/
http://www.envirogadget.com/solar-powered/solar-powered-room-fan-with-adjustable-solar-panel/
