Two Headlight Wiring Harness Kit With H4 Relay For 9003 6054 H6054 LED Headlights, LED Connector Socket Kit For Toyota Tacoma 1995 To 1997 And 1988 To 1995 Pickup, Plug And Play Fix For Dual Light Dim And Dual Ground Problems

Upgrade H4 headlight wiring for Toyota trucks (single kit)
✔️ Plug-and-play harness fixes dual-ground dim headlights effectively

This two-headlight H4 relay harness is designed to convert ground-switched headlight circuits to a positive-switched setup, helping Toyota Tacomas and pickups succeed with LED upgrades by stabilizing power and eliminating dim beams.

✅ Fixes dim / flickering headlights by stabilizing the power feed
✅ Eliminates back feeding and double ground issues on dual-beam lamps
✅ Plug-and-play harness with H4/9003 HB2 sockets for easy install
✅ Supports LED headlight upgrades and improves beam consistency
✅ Includes one complete kit for two headlights

💡 What is a headlight wiring harness with an H4 relay used for in LED headlight upgrades? It helps deliver steady power and fix ground issues so headlights perform reliably. - Fixes back feeding and double ground problems in dual-beam setups - Provides a separate relay and fuse for LED headlight stability - Works with 7x6/5x7 H4 sockets common in Toyota Tacomas and similar pickups