Tanks for that info, does anyone have any idea how much heat the 1000w light will put in my tent, id rather buy 1000w's to start off with if i can use them, but still unsure about the heat. If i got an air-cooled 1000w light wold i be able to control the temp enough, and does my idea sound like a good use of space, the way i picture it is whe i have 8 mature plants in each tray it hould produce a sea of green over the whole area of the tent ie 2.4 x 1.2, does this sound reasonable. Any input would be good and also i will have most of it setup tomorrow afternoon so i will take some pics and post them so you can see im not a dreamer,and thanks again everyone.:rastasmoke::rastasmoke::rastasmoke: