600W Sodium Ignitor for Universal and Venture 600W transformers (PH57360)
Ignitors are components inside 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.