with cfl you want them as close as possible with out them thouching the plants if they are cool white,however with warm white they have to be kept at least 2 inches away.I'm suprised you have a heat problem seeing as they are 6 inches away,do you have any ventilation in there?or a fan blowing on them?and you want to replace those soft white bulbs which put out more red light and alot of heat, with daylight or cool white for vegging.Or just keep the day light ones that you have and put them with your 400w hps,this will be fine for vegging
Titus Titan Reviewed by Titus Titan on . CFL Scortch!!! oh no... my babies. HELP here are some pics of my first serious grow. things were going great for the first couple weeks. fast germ time, I have been growing the seedlings each under there own 100w 1600lumens daylight cfl. put on a 10" shop lite type sheild. then I built this lite box and put 4 100w 1600lumens and 2 150 soft white. (can't find a 150w daylite). the plants have been underneath the dome. but still like 6" or more from the source, although they have been IN the dome. just noticed last nite the scorching so Rating: 5