Explanation:10~ 25 watt cfls will create more heat and throw of less lumens then 1~250 watt ups. Also remember 1 bulb is much easier to air cooled then 10.And please let me know your explanation cfl's give off more heat?please I'd like to know...and you can pull zips off of fls, yes hid is wayyyyyy better...but cfl's can be used without a doubt
I know full well what cfls can do. My first few grows were exclusively done using cfls and 4 foot fluorescent shop lights. (Back then good hid units were hard to get nevermind one actually designed for horticultural use) And yes you are correct I did "pull zips" however after I went to hps lighting I starting pulling lbs. The choice was easy for me.