LED功耗consumptions47W系统功耗SystemConsumptions58WLED初始光通量LEDinitialfluxWWPWCW 3854Lm3995Lm3901Lm功率因数Powerfactor>0.98总谐波失真Totalhamornicaldistortion 9%电源效率Powereffciency>82%灯具效率Powereffciency>91%安装高度Installationheight6M8M10M平均照度Averageilluminance>26.5lux>11.8ux>6.6ux光斑面积LlluminanceArea¢10M¢16M¢21M照度均匀度LlluminanceUniformity>0.4