... HPS Ballast 2.Brand: Holybay 3.Fn=50/60Hz 4.Size:195*108*63mm Specification & SizeNameHID Electonic Ballast for Metal halide lamp ... start, several start fragile cathode shorten lamp life 4,starter life is short, ... consumption, and low self heating. 4,Abnormal lamp automatically cut off the power 5, with ... high. 6, has a better fire performance, lamp kept at low temperatures. 7, electromagnetic radiation ...