As low as $4.09/mo with or . (Pay in 4 interest-free payments)
SMP LED Headlight Conversion Connector Upgrade to LED lighting without cutting or splicing your factory wiring. The SMP LED Headlight Conversion Connector provides a simple, reliable way to retrofit H4 headlight sockets for modern LED bulbs—ideal for off-road vehicles and everyday drivers alike. Direct replacement for H4 bulbs — plugs into existing H4 sockets for quick installation. High-temp thermoplastic housing — engineered to withstand the elevated temperatures inside headlight housings for long-term durability. No wiring modifications — convert to LED headlights without altering factory wiring, preserving vehicle integrity and resale value. Off-road ready — reliable in harsh conditions where vibration and heat are common. Perfect for DIY enthusiasts and professional installers, this connector delivers a clean, secure connection that supports consistent LED performance and reduces installation time. Compatibility: H4 headlight systems. For best results, verify bulb fitment and housing clearance before installation.
Replacement and retrofit headlight connectors for H4 bulbs
Temperature thermoplastic withstands temperatures in the confined space of the headlight housing for long term use and reliability
For off-road applications and can be used when converting to an LED headlight without the need to alter your factory wiring
or 
. (Pay in 4 interest-free payments)
