... : IP657.Insulation Class: 1Features:1. High-quality LED Chips with Unique Cooling Design, Low Photodegration, Long Lifespan (more than50, ... Rendering Index (Ra) above 805. Constant Voltage& Current Driver with High Power Factor (above 0.95), Wide Voltage Application Range ... Time (nanosecond scale, no-strobe, worm start available)7. Luminaire Efficiency above 85%8. Energy-saving, Pollution-free, Safe and ...