This is a great way to step down the voltage to the standard 120-277V for most lighting generators, lamps, and ballasts. This 460VA rated unit can work with light fixtures rated up to 450 watts.  If your power is rated at 347 volt or 480 volt, this is the item you need to make the standard 120-277V light systems work.

The 480V-347V to 277V step down autotransformer is designed especially for lighting applications, typically used in conjunction with 277V Induction Electric Ballasts, T-5 or T-8 Electronic Fluorescent Ballasts, LED Drivers, or Electronic HID Ballasts in Industrial and Commercial applications.


  • Input Voltage: 480V, 60 Hz or 347V, 60 Hz
  • Output Voltage: 277V, 60 Hz
  • Insulation Rating: 90ºC Class A
  • 460VA Rating