1. Introduction
Thank you for choosing the Open Trail HML-BC236 COMBO 7.5-inch LED Light Bar. This product is designed to provide powerful and efficient auxiliary lighting for your ATV or UTV, enhancing visibility and safety during off-road activities. This manual provides essential information for the proper installation, operation, and maintenance of your new LED light bar.
2. Safety Information
- Always disconnect the vehicle's battery before beginning any electrical installation to prevent electrical shock or short circuits.
- Ensure all wiring connections are secure and properly insulated to prevent moisture ingress and corrosion.
- Mount the light bar securely to prevent it from dislodging during vehicle operation, which could cause injury or damage.
- Verify that the light bar's power draw is compatible with your vehicle's electrical system to avoid overloading.
- Do not look directly into the light bar when it is illuminated, as the intense light can cause eye strain or damage.
- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (California Proposition 65 Warning).
3. Package Contents
Please inspect the package contents to ensure all components are present and undamaged:
- Open Trail HML-BC236 COMBO 7.5-inch LED Light Bar
- Wiring Harness (with red and black wires)
- Mounting Brackets
- Mounting Hardware (bolts, nuts)
- Hex Wrenches (2)

This image displays the Open Trail HML-BC236 COMBO LED Light Bar along with its complete set of accessories. Visible components include the 7.5-inch LED light bar itself, a bundled wiring harness with red and black wires, mounting brackets, bolts, nuts, and two L-shaped hex wrenches for installation.
4. Setup and Installation
The Open Trail HML-BC236 COMBO LED Light Bar features a universal fit design, making it suitable for various ATV and UTV models. Professional installation is recommended if you are unfamiliar with vehicle electrical systems.
4.1 Mounting the Light Bar
- Identify a suitable mounting location on your ATV or UTV that provides clear visibility and does not obstruct other vehicle functions.
- Attach the mounting brackets to the light bar using the provided hardware. Do not fully tighten at this stage.
- Position the light bar in the desired location and mark the drilling points for the brackets, if necessary.
- Drill pilot holes if required, then securely fasten the light bar assembly to the vehicle using appropriate hardware.
- Adjust the angle of the light bar for optimal beam direction, then fully tighten all mounting hardware.
4.2 Wiring Instructions
- Disconnect the vehicle's battery.
- Connect the red wire from the light bar's wiring harness to a fused 12V positive (+) power source. An inline fuse (not always included, but highly recommended) should be installed as close to the battery as possible.
- Connect the black wire from the light bar's wiring harness to a suitable ground (-) point on the vehicle chassis.
- If using a switch (not always included), wire it between the fused 12V positive source and the light bar's red wire. Ensure the switch is rated for the light bar's current draw.
- Route all wiring safely, away from moving parts, hot surfaces, and sharp edges. Use zip ties or cable clamps to secure the wiring.
- Reconnect the vehicle's battery and test the light bar's functionality.
5. Operating Instructions
Once properly installed and wired, the Open Trail LED Light Bar is operated via the connected switch. Turn the switch to the 'ON' position to illuminate the light bar and to the 'OFF' position to turn it off. This light bar is intended for off-road use or as auxiliary lighting where permitted by local regulations.
6. Maintenance
The Open Trail LED Light Bar is designed for durability and minimal maintenance. Follow these guidelines to ensure its longevity:
- Cleaning: Periodically clean the lens and housing with a soft cloth and mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the finish or lens.
- Inspection: Regularly check all mounting hardware for tightness and inspect wiring for any signs of wear, fraying, or corrosion.
- Waterproof Feature: The light bar is designed to be waterproof. However, avoid directing high-pressure water sprays directly at the seals for extended periods.
7. Troubleshooting
If you encounter issues with your LED light bar, refer to the following troubleshooting steps:
- Light Bar Does Not Turn On:
- Check the fuse in the wiring harness. Replace if blown.
- Verify all electrical connections are secure and free of corrosion.
- Ensure the switch (if used) is functioning correctly.
- Confirm the vehicle battery has sufficient charge.
- Light Bar is Dim or Flickering:
- Check for loose or corroded connections, especially the ground wire.
- Ensure the vehicle's charging system is operating correctly.
- Inspect the wiring for any damage or partial breaks.
- Moisture Inside the Lens:
- While the unit is waterproof, extreme temperature changes can sometimes cause condensation. If persistent, inspect seals for damage.
If these steps do not resolve the issue, please contact Open Trail customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Open Trail |
| Model | HML-BC236 COMBO |
| Light Source Type | LED |
| Vehicle Service Type | ATV, UTV |
| Special Feature | Waterproof |
| Item Dimensions (L x W x H) | 1 x 1 x 1 inches (Product dimensions may vary slightly) |
| Item Weight | 4.64 pounds |
| UPC | 191361148866 |
| Manufacturer Part Number | 12-9000 |
| Color | Black |
9. Warranty and Support
For warranty information, technical support, or replacement parts, please contact Open Trail directly or the authorized dealer from whom you purchased the product. Keep your purchase receipt as proof of purchase.
Manufacturer: OPEN TRAIL





