No u dont need to change the bulb dude, as for the distance like i told u if u the cooler u can keep it the closer u can get ur plants under it....and yes to flower u just need to switch to 12/12 and change the nutes...appart from that i can only wish u a happy grow
OmegaVermelho Reviewed by OmegaVermelho on . 400 Watt HPS question I have a 400watt HPS and i just want to know will this do for veg and for flower? and how far do i keep it away from the plants in both stages of growing. thanks Rating: 5