I also have 400w HPS and MH, but the CFL's will be to get them started so they don't stretch. I have read on here thread after thread of stretching plants. PUT THE LIGHT CLOSER.

There is nothing on the label of the CFL's stating whether they are cool or warm, just that they are reading lights. They are the spiral self ballasted type. Not sure but I think they are about 2800 lumens each. Thanks