... 35W,70W,100W,150W,200W,250W,320W,400W,600W,1000W,1500W.... both voltage: 110V/220V Dimming function UL and CE approved HT-50/35W HID Electronic Ballast (HT-50/35W ... )Model number: HT-50/35W Specification: Voltage input range: 100Vac~ ... CSafety and regulation: IEC61347EMC: EN55015 HID Electronic Ballast (HT-50/35W)