... Multi-Voltage AC165-265V Dimming :0--10V Automaticlly Electronic ballast for street light Output short protection Input power ... saving rate: >30% (compare with magnetic ballast)Smart electronic ballast Multi-Voltage ,integrated and intelligent controling by MCU,no ... two cables and switch. Dimming :0--10V Automaticlly ,electronic ballast for MH Bulbs 150W Electronic Digital Ballast for MH Bulbs