I have seen on youtube people building their own LED grow lights, has anyone done this?? They are growing anything from meds to cucumbers under them, and only using like 9 higher powered LED's. I've read a bit and it seems to be that anything over 1w LED is a waste as the extra power doesn't actually help penetration?
Anyone have info, links, known good DIYs???
Anyone have info, links, known good DIYs???