A 600watt bulb is considered by many to be the perfect bulb. Buds are signif. bigger using a 600wattt as opposed to a 400 watt.

You will need to exaust this grow space with such a strong bulb..

good luck : )
Garden Knowm Reviewed by Garden Knowm on . What Wattage/lighting to use? Hello people, thanks in advance for your help and advice. :) I have a quick question: I'm planning on doing a 36" x 20" closet/cabinet setup. What lighting should I use? 250W? 400W? 500W? 800W? Can anybody please direct me to something that would give trully great buds? I'm looking at this setup, but I don't know if it's completely over-kill for my cabinet http://www.bghydro.com/BGH/customkititems.asp?kc=HLDSSP08&eq=]. Should I use MH? HPS? Both? Thanks in advance! :D Rating: 5