range in size from 18W to 180W and average 14, 000 to 18, 000 hour lifetimes. They have excellent lumen maintenance but the longest warm up times from 7 to 15 minutes. LPS lamps feature the shortest re-strike time among HID sources only 3 to 12 seconds....
ADVANTAGES Very high efficacy hence highly energy efficient. Long life and low light depreciation. Very short run-up time and quick re-strike. An economic alternative to high pressure mercury vapour and metal halide lamps. Very high lumen output....