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A complete quick fit wiring harness for driving lights from Hella.

Easy to install with no modification to the existing vehicle wiring, this wiring harness kit features an adaptor that fits in place of your H4 Headlamp connection. The headlamp connector is the plugged into the back of the adaptor block. This method allows you to access the high beam circuit without any splicing or splittng of your vehicles wiring.

All cables used are heavy duty, double insulated automotive grade copper cabling and are protected by an inline 3AG style fuse holder and 20A fuse. The kit also comes with a 12 Volt 40 Amp relay and a ”duck bill” style toggle switch. Instructions are included on the back of the packaging.

Note: The wiring harness comes with a change-over bullet point section for modern vehicles fitted with a negative switching system.


1x H4 Headlamp adapter plug

1x Heavy duty 5mm battery supply to relay with 4mm power supply and chassis earth to both lamps

1x inline fuse holder with 20A 3AG fuse

1x Duckbill switch with and connectors

1x Diode protected 40A relay in heavy-duty connector