... production, 2.reasonable prices, 3.EDR150,EDR160,E40 Reflector type high pressure mercury lamp1.parameter list: Wattage Operating Voltage ... Operating AMP Luminous Fllux Average Life Base Bulb Type Diameter Max Length 50 220 0.62 1230 ... 220 5.40 28000 5000 E40 BTR 180 390 1000 220 7.50 41000 5000 E40 BTR 280 420 ... ,outer-door lighting,flood lighting. 250W Reflector type high pressure mercury lamp