H3 & H4 Heavy Duty Headlight High Beam Wiring Kit

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This plug & play wiring harness allows for quick fit installation of your LED light bar, driving light, work lights etc

The supplied H3 (HB3) and H4 Adaptors trigger your lights from your high beam without cutting or soldering any wiring. Simply unplug your HB3 or H4 connector at the back of your head lights bulb, plug in our adapter and you're done! The lights will only trigger from the high beam, and the switch will act only as an isolator.

Contains everything you need to get your lights connected: ON/OFF Switch, 60A Relay, 40A Fuse, ribbed cable protectors, heat shrink wrapped relay.

Our new V2.0 has built in electronics that automatically detect whether your system is positive or negative switched, and will work right out of the box without any modification whatsoever.

Toyota's, Ford Rangers, Mazda BT50 among many other popular 4X4's are notorious for being very difficult and costly to wire driving lights to high beam, our quick fit harness takes all the guess work out of it.

H3 & H4 are the most common wiring connections found in most popular makes and models. In the event that your car does not use H4 or H3, this wiring harness can still be used to connect to your high beam (cutting/soldering required).


You can connect accessories up to 740 watts
2.0m from H4 or HB3 Adapter to Relay
12v/24vDC 40A Switching Relay
Push Button ON/OFF Switch
Featuring a total 4.8 meters of wiring (full stretched out)
2.4m of cabling from Relay to Switch
2.0m of cabling from Driving Light connector to Relay
Total cable length 6.4m
12v DC 40A Rated Fuse Kit
UV Rated Insulation

Full 1 Year Replacement Warranty. We recommend professional installation. If the product is damaged during installation, we are not responsible and will not issue a refund.

In The Box:
1x Quick Fit to High Beam Plug & Play Wiring Harness

Relay Rating: 12/24vDC 60A
Fuse: 40A
Light Connector: Deutsch DT Waterproof
Max Load: 740w