GMSgrowsanswered grow question 3 years ago Cmh is a good alternative to hid. At 600 watts, is almost equivalent to a 1000 watt MH and HPS. full spectrum or blue lighting for veg can be purchased. If you go with LED I would go with the absolute best you can afford for big hard nuggies at harvest. Don't buy lower end or disappointment will be your reward... Cheers