H4 Negative Switched 12V LED Headlight Relay Wiring Harness 80A

PRODUCT OVERVIEW

This H4 negative-switched LED headlight relay wiring harness is designed to improve the brightness and stability of high and low beam headlamps. It is suitable for 12V systems using H4 (9003) bulbs and includes a plug-and-play connector for straightforward installation.

KEY FEATURES

• Optimized for 12V H4 (9003) LED headlight applications
• Negative-switched relay harness improves headlight brightness
• Rated current up to 80A for stable, reliable performance
• Direct plug-and-play replacement for defective headlamp wiring
• Suitable for front headlight use and universal 12V fitment

MATERIAL & BUILD QUALITY

• Durable plastic insulation with copper wiring
• Excellent electrical conductivity for consistent light output
• High heat-resistant construction for long service life
• Engineered to match original size for a precise fit

SPECIFICATIONS

• Bulb type compatibility: H4 (9003)
• System voltage: 12V
• Rated current: 80A
• Item length: 155 cm / 61 in
• Colour: Black
• Material: Plastic, copper
• Packaging weight: 262 g
• Number in pack: 1 wiring harness
• Wire quantity: 1 assembly
• Placement on vehicle: Front
• Universal fitment: Yes (12V applications using H4 bulb type)

PERFORMANCE BENEFITS

• Improves brightness of high and low beam headlights
• Reduces voltage drop compared with aged or undersized wiring
• Supports stable current delivery to LED headlights
• Designed for long lifespan and consistent performance

INSTALLATION

• Original-size connectors for a precise, secure fit
• Direct replacement for a faulty headlamp wiring harness
• Plug-and-play installation in minutes for most applications
• No cutting or splicing required when used with matching H4 sockets

PACKAGE CONTENTS

• 1 × H4 LED headlight relay wiring harness (negative-switched, 12V)

FITMENT NOTICE

This harness is intended for 12V vehicles using H4 (9003) headlight bulbs and a negative-switched system. Always verify bulb type and wiring configuration on your vehicle before purchase to ensure compatibility.