Don't waste your money. Get a hps light, or start with cfls(compact flouros) and add a hps light. I got a 150 watt hps light at lowes for 70 bucks, and I'm also using 2 150watt cfls and I'm looking to get about 5-6 ounces from 3 plants.

MH is better for veg than flowering. You want a hps for nice buds. Maybe buy the mh off him for vegging.