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💡 Illuminate your ride with power and precision—never settle for dim again!
The KASLIGHT H6054 LED Headlight H4 Relay Harness is a vehicle-specific, fused relay wiring kit designed to upgrade and stabilize power delivery to LED headlights. Compatible with Jeep, Toyota, and Subaru models using H4 9003 plugs, it fixes common issues like dim, flickering, and malfunctioning headlights by converting ground-switched wiring to positive-switched. This plug-n-play harness supports multiple LED headlight sizes, protects against electrical overload, and ensures brighter, more reliable night driving.






| ASIN | B07B9QQMMH |
| Auto Part Position | Inner |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #23,068 in Automotive ( See Top 100 in Automotive ) #49 in Automotive Replacement Electrical Wiring Harnesses |
| Brand Name | KASLIGHT |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,007) |
| Fit Type | Vehicle Specific Fit |
| Included Components | H4 Headlight Connector |
| Item Highlight | Upgrade sealed beam headlights with fused wiring. Fits H6054 H6024 9003 5x7 7x6 LED conversions and solves dim light issues |
| Light Color | 4000K Cool White, 6500K Bright White |
| Light Source | Light Emitting Diode (LED) |
| Manufacturer | KASLIGHT |
| Manufacturer Part Number | KAJE-0003 |
| Model Number | 8542081869 |
| Number of Items | 2 |
| Number of Packs | 1 |
| Number of Pieces | 2 |
| Set Name | 1 Set |
| UPC | 653437481838 |
| Unit Count | 2 Count |
| Wattage | 360 watts |
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