MH lamp. Voltage:120-277V/ 50-60Hz, Watt:70-2000W, Lamp head:E27,E40, G12, Rx7s, FCR. color temper: 3000-20000K MH lamp. Voltage:120-277V/ 50-60Hz, Watt:70-2000W, Lamp head:E27,E40, G12, Rx7s, FCR. color temper: 3000-20000K , Luminous flux: 80-90lux/W. Life time: average 8000hours.