These are PAIR of H4AD-1 (1-light) adapters designed to plug into your stock H4 plug. It provides an H4 Female connector and a Hi/Low Projector connector, essentially tapping into your H4 signal to provide high and low beam control for the projector.

• These are designed to work with Dapper Lighting Hi/Low (Bi-LED) headlights that use H4 connector Optics. Please confirm fitment before ordering.
• These are for single headlight control (one headlight on each side). If you are looking for dual Bi-LED control, please use the H4AD-2 (2-light) Adapters.