ok im only using m/h for now till i get my extractor in the post
then il be using my 250w hps ..im not to sure about any heat probs yet but i just like the look of the cooltube as its a space saver to as i can get a bigger light closer to the plants..iv managed to get hold of a camara so i hope you enjoy them .

p.s. remember thay have only bin under 54w of cfl's and for the last 4days under 125w of m/h