Collection: Integration Kits (321)

Truckstop Group stocks integration kits for LED lighting installation on HGVs and commercial vehicles. Integration kits provide the wiring harness, relay, switch, and connector components needed to connect LED light bars, work lamps, and auxiliary lighting to the vehicle's electrical system safely. Available for next-day UK mainland delivery or collection from our Midlands branches.

LED lighting integration kits for commercial vehicles

Fitting LED light bars and auxiliary work lamps to an HGV cab or service body requires more than just mounting the lamp and connecting it directly to the battery. A properly integrated installation uses a relay to protect the vehicle's switch circuit from the current draw of the lamp, a fused supply from the battery or a switched ignition circuit, and a cable run rated for the total wattage of the lamps being installed.

Integration kits simplify this by providing the components in a matched set: relay, fuse, switch, and pre-terminated cable harness for specific lamp configurations. Using a kit rather than sourcing components separately ensures compatibility between the relay rating, the fuse size, and the cable cross-section, reducing the risk of an undersized installation that causes nuisance fuse blows or a cable that runs warm under load.

For work lamps on HGVs, confirm whether the installation requires a switched live from the ignition or a direct battery supply with a manual switch. Cab-mounted work lamps for yard manoeuvring are typically connected to a dedicated switch in the cab with the relay triggered from the ignition-on supply. Truck-mounted lamps for reversing applications are often wired to illuminate automatically with the reverse gear signal from the truck's body builder connector.

Cable routing on an HGV requires consideration of heat sources, moving parts, and the cab tilt mechanism. Cables should be protected with split loom conduit where they pass through cab apertures, and routed away from the exhaust and any high-temperature components.

Frequently Asked Questions

What is a truck integration kit?

A truck integration kit is a pre-assembled set of electrical components — relay, fuse, switch, and wiring harness — designed to connect auxiliary LED lighting to a commercial vehicle's electrical system. Using a kit ensures the wiring is correctly specified for the lamp load and the relay rating is appropriate for the application.

Do I need a relay to fit an LED light bar to a truck?

Yes. LED light bars, particularly higher-wattage units used for driving or work light applications, draw more current than most cab switch circuits are rated for. A relay is used to switch the high-current supply directly from the battery through a fused circuit, with the cab switch operating only the relay coil. This protects the switch from overload and reduces voltage drop to the lamp.

What cable size do I need for an LED work lamp installation on a truck?

The cable cross-section must be adequate for the total current draw of the lamps at 24V. As a guide, a 40W LED light bar at 24V draws approximately 1.7A. For multiple lamps on a single circuit, add the current draws and select a cable cross-section rated above the total. Integration kit harnesses are pre-specified to match the lamp ratings they are designed for.

Can integration kits be used with any make of truck?

Yes. Integration kits provide the electrical connection components for the lamp installation — the truck's body builder connector or battery supply point is the connection interface. The relay, fuse, and harness components are standard electrical items that are not truck-make-specific. The switch panel connection may vary depending on the truck cab's switch apertures and blanking plate configuration.