Szdystar LED Light Bar Wiring Harness Kit 12V 14AWG 3.5m with 40A Relay, Remote & Fuse

Szdystar's LED lights bar remote control wiring harness kit is a ready-made 3.5m 14AWG wiring loom that lets you power, switch and remotely control a single LED driving light or light bar up to 300W on a 12V system.

This professional-grade wiring harness bundles a 40A blade relay, inline fuse, an on/off keyboard-style rocker switch, a compact wireless remote receiver, and heavy-duty 14AWG power and ground leads into a single plug-and-play assembly. It's designed to avoid splicing into your factory circuits — instead you connect directly to the battery and the single light, keeping installation cleaner and reducing risk to the vehicle's electrical system. The loom is insulated with durable PVC and uses copper conductors for reliable current flow, with an overall length of about 3.5 meters to reach most front-mounted lights.

How do I install this harness safely?

Installation is straightforward if you have basic wiring experience, but professional installation is recommended for unfamiliar users. The kit connects to the battery, the single light, includes an inline safety blade fuse, and mounts a small in-cabin switch and remote receiver. Always isolate the battery before wiring and follow local regulations.

• Disconnect battery negative before starting.
• Mount relay and fuse close to the battery for protection.
• Run 14AWG power and ground to the light, avoid sharp edges.
• Use provided switch and secure receiver inside cab within 30m of remote.

Will this work with my vehicle and LED light specifications?

The harness is built for 12V systems and supports a single light with a maximum combined load of 300W. If your vehicle uses a 24V electrical system you'll need to replace the relay with a 24V-rated unit. The universal plug and standard wiring make it compatible with most aftermarket LED driving lights, pods, fog lights and light bars.

• Default voltage: DC 12V (relay swap required for 24V).
• Wire gauge: 14AWG suitable for up to 300W at 12V.
• Relay: 40A blade-style with included fuse for safety.
• Universal plug fits most aftermarket lights.

What remote and switch features are included?

The kit includes a wireless remote with about a 30-meter range and a simple on/off keyboard-style switch that can be flush-mounted inside the cabin. The remote adds convenience for off-road and work applications while the in-dash switch gives a reliable manual control option. The receiver integrates cleanly into the loom for a tidy install.

• Remote range approximately 30 meters line-of-sight.
• On-off keyboard switch with adhesive backing for flexible mounting.
• Receiver built into harness for plug-and-play setup.
• Six remote modes available (per manufacturer listing).

How durable and safe is the wiring kit?

Built with high-quality PVC insulation, copper conductors and a reliable 40A relay, the harness is designed for demanding automotive use. The inline blade fuse protects against overloads and the rated components tolerate typical under-hood temperatures up to 85°C. Proper routing and secure connections will maximize service life and safety.

• Materials: durable PVC, copper wiring, metal relay.
• Temperature rating up to 85°C for normal automotive environments.
• Included safety blade fuse protects the circuit.
• Recommended professional installation for longevity and compliance.

Who is this for? The Szdystar remote control wiring harness suits DIYers, off-roaders, tradespeople and installers who need a neat, reliable way to add or replace a single 12V LED driving light or light bar without cutting into factory wiring. It’s ideal when you want remote control convenience, a secure fuse-protected circuit, and a ready-to-install length (approx. 3.5m) with heavy-duty 14AWG conductors. Check your light’s wattage and local regulations before fitting, and consider having a professional complete the final connections if you’re unsure.