Model: Led High Bay-GK415-50W Led Quantity: 50W (Taiwan wafer Led) Available Voltage(V): 85-265VAC 50/60HZ Power factor (PF):>0.95 Power(W): 50watt Luminaire (LM):4500-5000Lumen Fixture efficiency:>95% Emitting Color:2800-3000K 5000-6000K 7000-8000K Average life time: �0, 000 hours Product Size:300-500mm Box Size: Weight(KG): Application: The lights could be used in tunnel, metro, busstation, underground parking garage, gym, square, advertising board ,wide area lighting and architecture lighting and so on