1,LED 1.parameter Input VoltageAC85V 265VFreqency Range50Hz 60HzTotal Harmonic DistortionLess than 9 %Power FactorMore than 0.98Power EfficiencyMore than 82 %Working VoltageDC30 36VLed1 pcLED Led Consumption48WSystem Consumption54WLed Luminous Efficiency70 Lm /WLed Initial Flux4000Lmlamp’s EfficiencyMore than 91 %Average Illuminance4 M58LUX6 M13 LUX8 M 5 LUXIlluminance Area4 MDiameter of the circular area for 5 meters6 MDiameter of the circular area for 10 meters8 M Diameter of the circular area for22metersIlluminance UniformityMore than 0.6 2,LED parameters (Item)Min dataClassic dataMax data Power-48W54WCurrent-1.52A1.65 AVoltage29V31.8 V32.8 VWarm white2700K3200 K3900 KPure white4000K5500 K6000 KCool white6000K6500 K7000 KJunction temperature-85 °C105 °CLED chips Qty-50PCS-LED lumen efficiency60LM/W70LM/W80LM/WLED chipsBridge Lux 3,Size 4,Distribution 5, Waterproof Testiing 6,Aging Test Product picture Welcome link our website www.knled.com Meeting room