Well, I'm no expert but,
You can get 100w cfl's at HD that put out close to 7000 usable lumnes each (listed at 10,000)and get better canopy penetration than a bunch of smaller ones. They are like $15 per bulb. Would be a lot easier to rig a few of those and it's slightly more efficient too.
...and yes, cool white for veg. and mix in some warm white for flower.
Bulster Reviewed by Bulster on . cfl lighting I plan on changing my grow room which is aprox, 4x5 foot from 2 400 watt hps. to 24 26watt cfl.the energy saving type each equivilent to 6500 lumens, would there be much energy savings, should I use soft white or day light. I am growing in hydro, ive seen numerous pictures with cfls I thought I would give it a try, any of you pros. please offer your guideance. Thanks:smokin: Rating: 5