BRO MH IS IT LET ME EXPLAIN, Lumens are measured 12in off top of canopy and 1 mh 400w is about 40,000 lumens. now if i move the light 6in away from top of canopy now lumens are 80,000.Now lets talk cfl's ok 1 bulb 2500 lumens so u need 16 cfl's to put out what 1 mh bulb puts out at 12in and 32...