High-intensity discharge lighting in one place: HPS, metal halide and ceramic metal halide (CMH) bulbs, plus the ballasts, reflectors, double-ended fixtures and socket adapters that run them. HID is still the lowest-cost way to put a lot of light over a large flowering room; the trade-off is heat, so plan your ventilation around it.
Shop by bulbs or fixtures, ballasts & reflectors. Looking for LED instead? Every LED fixture is in LED Grow Lights, sorted by wattage.