I no longer use a metal halide, at all ... I use HPS from seed-to-harvest ... :smokin:
the image reaper Reviewed by the image reaper on . What's more important, the light spectrum or the light cycle? Hi guys and girls, I understand that red spectrum on a 12/12 light cycle is good for flowering and budding, whilst 18/6 on blue spectrum is good for vegging. However if I was to buy only one type of bulb either blue or red, can they be used in all stages of growth providing I ammend the light cycles? If yes, then what would you go for spectrum wise blue or red? I am on a bit of a budget and if I can avoid buying two bulbs then this would be great. Thanks, J Rating: 5