hi im planning on getting cfls for my next grow before i place under 600w ballast, what size fitting cfl and what wattage and how many would be best to get,
I start seedlings out under just a couple of daylight CFL`s for the first week or so then I put them under a 2 foot 4 bulb T5 HO light for s hort time before going under either the bigger T5 or 1000 watt MH/HPS light. For CFL`s try to get like the 26 watt 6500k daylight CFL`s or closest to 6500k.
Try to find the highest wattage you can. I vegged under six 23 watt Daylight (6500k) and then under six 42 watt Soft White (2700k) and they stretched a lot less under the higher wattage, and grew faster.