Go with 400W...its more efficient, I think 600W is the most efficient for HPS anyways and get a good bulb.
Cyclonite Reviewed by Cyclonite on . Requesting Lighting Recommendations Hopefully you all are having a wonderful October like I am. I have been doing some homework on different setups that other growers might have and have decided that it might be time to invest in HD lighting. But I am also thinking about efficiency and economy. Currently I am vegging a few plants under 3-65w FluoreX CFL floodlights (13,650 phototropic lumens) from Home Depot. I originally wanted to use CFLs through the entire grow but now I want to just use them to veg. For a while I Rating: 5