1.150W HPS digital electronic ballast dimmable 2. wide voltage range: ... RS485/TTL 4.CE,UL,FCC,CUL 150W HPS digital electronic ballast CE,UL,FCC,CULModelHPS-150W-DLighting ... start, expansion of lamps life and reduction of original installation charge·Low voltage to start, suitable for low ... energy·High power factor, able to reduce initial installation cost·Able to insure the invariableness of out power ...