Following Ledgirl's lead, I figured it was time to introduce MY led grow light.You guys were wrong about the wavelengths.It's green yal...these are my patented "Kermit Green" .25 watt diodes.The unit is 15 watts- but you need 75 of them to cover a 4x4 grow area.I think I need to work on the name tho-:thumbsup: