Pick up HID ballast kits from Grainger to help service or replace high-intensity discharge lighting for your factory floor, warehouse, gymnasium or other large indoor or outdoor space. Ballast kits contain everything required to service HID fixtures, including ballasts, capacitors, igniters where required, clamps and mounting hardware. Vacuum-impregnated ballasts help eliminate premature failure and voltage breakdown to help provide longer life and quieter operation. Shop for HID ballast kits and ballasts you can depend on at Grainger.