Hey guys so I have 3 300 watt bulbs of these: http://walmart.triaddigital.com/uploadedImages/In_Stores_Now/pg_evt_wm_energy_720x320(1).jpg I have them hanging down in my grow box, will these work for the whole process? When should I get different bulbs if I need a hps light?
You should be more concerned with lumens than watts. Watts is just a measure of electric work. Lumens is a measure of light output. Shoot for 3,000 lumens per sq. foot of garden. The more, the merrier.
You're all good. 3k is a minimum to shoot for. I'm just shooting off what I've read though. But, it's from the MJ Hort. grow bible.