http://mrsec.wisc.edu/Edetc/background/LED/traffic_light/spectra.htm
here is something about the spectrum of the traffic light if it helps .... I really don't understand anything in light and don't wanna act smart up here... Please tell me your opinions :)
Hi there... after some interesting situation I have a red LED traffic light left in my house. Can someone tell me is it good for growing indoors? Is it too much? Some suggestions please?
I have read that LED lights are very good for growing, and that in the red spectrum there is much...