High performance, low total cost of ownership, Flexible lighting solution - available in various bases and wattages.; Long Life when compared to switch start metal halide (for 175W and 250W versions).; Philips Pulse Start Metal Halide Lamps offer an optimized metal halide system for greater efficiency and lumen maintenance.; Up to 25% increase in maintained light output over standard metal halide.; Increased efficacy (up to 120 lpw) equals low total cost of ownership.; Up to 50% faster warm-up and restrike time.; Up to 50% increase in life when compared to switch start metal halide (for 175W and 250W versions).; ED-37 base available in 350 and 400 watts base up and horizontal operations as well as COATED / BT-37 available in 750 and 1000 watt base up operation and 750 watt horizontal operation / ED-28 available in 175, 200, 250, 320, and 400 watts base up or horizontal operations. 175 and 320 watts of the ED-28 base are also available in COATED.; Ideal for industrial and retail high/low bays and parking lots.
