I have that exact light and have found (because I didnt have the money to spring for the reflector) that its so centeralized that you will end up with a bunch of dark areas and your plants will constantly be twisting and turning to position them selves to recieve the light. So you should get a bunch of consumer type CFLS (very cheap) and position them all around the plants so you have light evenly distributed. you should at least get 6 26 watt cfls. also those units are fit for a plant each. you're going to run out space QUICK. I have a flood tray that is 2' x 2' that BARELY holds 6 plants.

In my opinion those plants arent going to be ready for bloom in two weeks.