The H4/H4 Anti-Flicker Harness is a practical solution for 7-inch round LED headlights. Made in the U.S.A., this anti-flicker harness ensures a stable and reliable lighting experience. It is specifically designed to meet the unique electrical requirements of certain model year buses. With a diameter of 7 inches, this harness fits most 7-inch LED headlights. Improve your lighting performance with this essential accessory.