High Beam Halogen Piggy Back Adaptor - H1/H3/H4/H7/H8/9005/9006/ – Supernova Lighting
H1 Headlamp Harness Adapter
2pcs Car Led Headlight Bulb Adapter Holder Base Sockets Retainer For H1 H3 H4 H7 H11 H13 9004 9005 9006 9007 | Fruugo KR
2PCS H4 to 9007 Car Headlight Conversion Harness Socket Adapter For Hummer H2 H1 761780413229 | eBay
For Ford H1 Original Car Light Socket H1 Led Hid Xenon Halogen Light Bulb Holder Socket Cables For Ford H1 Led Adapter Connector - Buy For Ford H1 H3 H7 H4 H8
Adapter: H4 Male > H1 Female | Never Ending Details