I think you need to know how many plants you plan to grow first.
then you better decide the watts.
but soon as you can go hps!
I pretty new my self but i do know hps is the way to go.
good luck.
smokeydabear Reviewed by smokeydabear on . lights im a beginner grower. have a couple questions about lighting. my grow spot is a 2' x 3' space. im planning on running a 400 watt HPS bulb. what all parts will i need to make it work? will i need a special relector for a HPS bulb or will it fit any light reflector i buy? if i need a special one, what do i need to ask for? im just wanting a 2' domed reflector that i can hang from the ceiling. i called a local electrical supply company earlier to price a ballast and lighting fixture for a Rating: 5