ScooterWest.com - Replacement 3 Prong Connector for H4 or HS1 style Headlight Bulb with Leads
TLED-H4, Trux LED Projector Headlight with White Auxilliary Angel Ring - 5" x 7" - Heavy Duty Truck, Tractor Trailer Parts, Class 8 and Diesel Engine Parts & Supplies - Order Online -
How to Re-Pin H4 (aka 9003) HID Bulb (also apply for Bixenon H4, H13 & 9007) - YouTube