in my opinion, if your cabinet has the room for four-foot flourescent tubes, you would be much better off to go that route ... I believe the tubes are much better than the CFLs, in several ways: lumen output, dollar value, evenness of light, and less heat to the plants ... keep them 1" above the plants ... I've been using fluorescent tubes to grow for about 28 years now ... get the 'Cool Whites' for vegging, and the GE 'Kitchen and Bath' for flowering, found at any walmart, etc... :smokin: I'm running twelve tubes now, this morning I caught my plants wearing sunglasses ...