... 7:2 , 7:1:1 with the mixture of red , blue , orange ,yellow and white lights , or ... easily be added to enhance vegetative growth , red LEDs are good for promoting the fruiting and flowering ... stage , our suggestions on the wavelength are red (620-630nm) , red(640-660nm) , blue (450- 460nm) , blue ... Breeding, Farm/Flower Exhibition/Garden/Bonsai etc. 2011 hit high power led grow light 600w