These are the Nanolux Summit series They can run a single CMH, 315. They can run two cmh (630) or a single Double ended 1000w De bulb your choice of metal halide for veg, or hps for flower. Currently the hoods are set up for single 1000w De bulbs! To run the cmh you need to buy the cmh conversion hood and cmh bulbs the hoods are easily interchangeable! I will include hood, ballast, power cord, and bulb. Bulbs have 1 run on them so there good for 1-2 more runs before needing changed. I have 26 years of growing experience. If you’re buying lights I’ll include the interlink cables for connecting the lights to use with a controller, such as troll master etc so the lights can be controlled via interlink