Szdystar LED Light Bar Wiring Harness Kit 2‑Lead DC12V 14AWG with 40A Relay & Remote

Szdystar's LED lights bar remote control wiring harness kit is a ready-made 2-lead wiring loom with an on/off keyboard switch, 3.5m cable, 14AWG power conductor, 40A blade fuse and remote control for adding and operating two auxiliary lights up to 300W total at DC12V.

This complete wiring harness bundles the heavy-gauge cable, relay, blade fuse and wireless switch needed to power two driving or work lights while protecting your vehicle's factory wiring. Designed for DC12V systems (relay swap required for DC24V use), the kit simplifies installation of off-road light bars, fog lights, pods or other auxiliary lamps and keeps control within roughly 30 meters via the included remote.

How does this harness protect my vehicle's electrical system?

The kit includes a 40A blade fuse and a dedicated relay to keep high current off your vehicle’s existing wiring and switches. That means the heavy current runs directly from the battery through the 14AWG supply conductor, while the vehicle’s wiring only handles the low-current switch signal.

• 40A blade fuse for overcurrent protection
• Dedicated 40A relay isolates accessory current
• 14AWG main cable (approx. 2 mm²) for safe high-current handling
• Subordinate 16AWG cores for signal or accessory feeds

Will this work with my lights and vehicle voltage?

The harness supports two lights (two leads) and is rated for up to 300W total on DC12V systems (recommend each lamp ≤150W). If your vehicle uses a 24V electrical system, the wiring is reusable but you must replace the relay with a 24V-rated unit to match the system voltage.

• Designed for DC12V by default; relay change needed for DC24V
• Supports up to 300W total (max ~150W per lamp)
• Universal plug for common aftermarket lights
• Suitable for halogen, HID (with correct matching), LED driving and work lights

How do I operate and install the remote switch?

Operation is simple: the kit includes a compact on/off keyboard-style switch that can be mounted anywhere with adhesive backing, plus a wireless remote with about a 30-meter range. Professional installation is recommended to ensure proper ground, fuse placement and routing of the 3.5m power cable away from hot or moving parts.

• Wireless remote control range approx. 30 meters
• On-off keyboard switch with adhesive backing for flexible mounting
• 3.5m (≈11.48ft) harness length for versatile routing
• Materials: PVC jacket, copper conductors and metal hardware for durability

What durability and safety features should I expect?

The wiring harness is built from durable PVC-insulated copper conductors and fitted with a replaceable blade fuse and relay to increase service life under normal use. Rated components and correct gauge wiring help maintain safe operating temperatures; the specified working temperature rating reaches up to 85°C.

• High-quality copper and PVC construction for long-term use
• Relay and fuse included for electrical safety
• Switching relay rated 40A — longer life at DC12V
• Designed for outdoor auxiliary lighting applications

Who this is for: installers, off-roaders and DIY vehicle owners who want a plug-and-play wiring solution to add or upgrade auxiliary driving, fog or work lights without modifying factory wiring. Choose this kit if you need a protected, remote-controlled harness sized for two lights, a 3.5m routing length, and heavy-gauge conductors for up to 300W on 12V systems. Have a professional verify vehicle compatibility, replace the relay for 24V systems, and follow local laws before installation.