I grow just fine in a 4'x5' with a 400MH/HPS convertible light. No need to overkill on the lights! Also, I think in that small a space, heat may be an issue with the big lights, even if their vented and cooled externally to the room. The 400's are cheaper to buy AND run, and replacement bulbs are cheaper as well....something to consider, as you will have to replace them occasionally.
TANKJR Reviewed by TANKJR on . lighting help!!!!!please i am a total noob at growing. I am doing a lot of research on growing cause i want to start. I havent found anything that helps me and i just want to know what is the best light to start with? and ill be starting off with bag seeds to freshen my experience in growing. and where could i get my hands on the light that i need? Rating: 5