Pothead4204life good one. youre exactly right, and if you do this dubsak, they make a conversion bulb that both will fit the ballast. If heat is an issue, i would grow with 48" flouro tubes, this is alot less expensive (and is suffecient). but if youre adiment about getting the HPS/MH light kit, you can get a decent one online (1000w HPS for 219.95- 400w HPS for 144.95) and the MH versions are slightly cheaper. im doin a closet grow (about 12 sq.ft.) and ive only used 48" flouros and ive done good (but ill still hit spikes of 93'F with those).... so theres somethin to consider..

heres those links

http://www.gchydro.com/sunsystem/SXH_H100.asp

http://www.gchydro.com/sunsystem/lig_sun.asp
ronjohn420 Reviewed by ronjohn420 on . Buying a light I'm planning an indoor closet grow. I have heard of using both a Metal Halide light and a High Pressure Sodium light. Which one kind is best, and what wattages should I be looking for. Thanks. /dubsak Rating: 5