Ifrit
Active Member
I'm confused about lighting because I have come across threads about growing with a 150hps but then I am now finding threads about using 400-600w for growing. I've also discovered that using HPS from seed to flower will have a negative effect on the plants. I should be using a MH bulb in vegetative stage and HPS in flower stage. Is it possible to swap out the HPS bulb that came with my Sun System for a 150 MH bulb?