Tony
Lumatek 600W Dimmables

Expected Life Span(Hr) 24,000 32,000(HPS) 10,00015,000(MH). Thick glass housing for extra durability. Most efficient in removing heat generated by bulb. Ipower 600w 600 watt hps mh grow light digital dimm system indoor garden set 1x super hps + 1 mh bulb. Coverage depends on fixture height and wattage results may vary.