This is the one I built and use. Its 8 E27 light sockets. currently it has eight, 15 watt LED spotlight bulbs in it. it has a mix of Red/Blue and Warm White bulbs. It works and works well. The second pic is a plant, at 10 days old, I recently sprouted under that light: So yes, a DIY light can work and work well. and for say a micro grow, would be good. For a larger area, I'll say again, its not worth the effort. LED growlight makers have engineered the lights for optimum footprint, etc. We can certainly make a light that works, we will NOT make one that works better without spending 3 times as much money and way to much time. The key to a good DIY project is it has to fill a need, and it has to be worth the effort!
