... power factor:PF≥0.983.Low harmonic:General harmonic THD≤10%4.High light efficiency5.Low power consumption6.Constant output of ... .9.Completely silent: no more humming and buzzing10.Working temperature:-10°C~+40°C11.Approval: CE, GS, TUV, EMC, ROSH,ULSuitable ... .6.Suitable environmental temperature is about -10~+40°C7.In order to avoid shaking, Digital Ballast should be fixed well. Any falling ...