noway 400w hps all the way but i would recommend that u use a 600w if you can Envirolights take ages for the plant to grow im talking from experience if you want nice big bushy plants in no time at all get an hps. envirolite is extremely painstaking slow form my experience with hps. i prefer to start my plants lives off with the enviro then when they are about 2 maybe 3 weeks old put them under my 400w hps. put it this way 400w hps if u want to have fun cheers wizard1612