HO lamp single lamp ballast, t5 54w,electronic ballast,ballast,CE CB SGS MEPS ROHS Active high power factor correction HO lamp single lamp ballast, t5 54w,electronic ballast,ballast,CE CB SGS ... range voltage 110V~277V, for t5 HO lamp12.EEI=A2. 5 years warrantyOne electronoic for single lampOne electronic for twin lamps ModelLampVoltageSystem powerPower ...