Ignitor for Powerhouse Ballasts, Sodium, 1000W Long Range1000W Sodium Ignitor, Long Range, for PH57361 & PH57370 Ignitors are components inside magnetic ballasts. They take power off the transformer and use it to strike the bulb inside the reflector. Replacement ignitors are available in a variety of wattages, brands, and types. Be sure to review item numbers and descriptions carefully before ordering. Contact your Hydrofarm sales representative for help selecting the proper components.