Installing an under tailgate light bar is one of the most practical and visually appealing upgrades for trucks and SUVs. These light bars, typically installed just beneath the tailgate above the rear bumper, serve both functional and stylistic purposes. With their bright LED strips, they improve visibility, especially during low-light conditions, while also enhancing the overall appearance of the vehicle. Whether you’re a weekend hauler, a night-time commuter, or someone who simply values safety and design, an under tailgate light bar offers a significant improvement over traditional lighting alone.
What Is an Under Tailgate Light Bar?
An under tailgate light bar is a strip of LED lights that mounts directly under the tailgate of a pickup truck or SUV. Most models come with multiple functions integrated into a single unit, including brake lights, running lights, turn signals, and reverse lights. These LED bars are designed to mimic or enhance the factory lights of the vehicle while making the truck more visible to other drivers.
Types of Under Tailgate Light Bars
- Single-color LED light bars: These typically offer red lighting for brake and turn signal functions.
- Multi-function LED bars: Include red, amber, and white lights for full visibility tail, turn, brake, and reverse.
- Sequential signal light bars: Feature a dynamic turn signal effect, usually in amber, that adds a modern, high-end look.
Most light bars are weather-sealed, waterproof, and flexible enough to fit a wide range of tailgate widths, typically ranging from 48 inches to 60 inches long depending on the truck model.
Benefits of Installing a Tailgate Light Bar
Improved Road Safety
The primary reason many drivers choose an under tailgate light bar is increased visibility. LED lights are brighter and more noticeable than traditional halogen bulbs, helping drivers behind you better see your intentions, especially in rain, fog, or nighttime conditions. Brighter signals mean other drivers are more likely to notice when you’re braking, turning, or reversing.
Enhanced Aesthetic Appeal
Aside from functionality, a tailgate light bar adds a modern touch to your vehicle. The sleek look of an LED strip neatly mounted below the tailgate offers a clean, stylish aesthetic. It complements aftermarket taillights or factory configurations and creates a custom appearance with minimal installation effort.
Versatility and Customization
Many light bars allow users to customize the pattern of lights, such as flashing sequences, brightness levels, or even color tone in some cases (where legal). This customization offers more control over how your vehicle is seen on the road while adding a personal touch to your truck’s rear design.
Key Features to Look For
Brightness and LED Quality
Look for a tailgate light bar with high-quality, high-lumen LEDs. Premium diodes will be brighter, more energy-efficient, and last longer than cheaper alternatives. Quality LEDs also provide consistent lighting output, which is important for signaling and aesthetics alike.
Weather Resistance
Since the light bar is mounted externally, it must withstand exposure to rain, snow, mud, and dust. Check for IP ratings (such as IP67 or IP68) to ensure the unit is waterproof and sealed against environmental factors.
Simple Installation
Most under tailgate light bars offer plug-and-play installation, connecting via a 4-pin or 7-pin trailer harness. Some may require hardwiring for full functionality. Look for units with pre-applied 3M adhesive or mounting brackets that make the installation easier and more secure.
Compatibility
Make sure the light bar fits your truck’s size. Common lengths include 48-inch (for mid-size trucks) and 60-inch (for full-size trucks). Measure the area under your tailgate to ensure a perfect fit without needing modifications.
Installation Guide
Tools You May Need
- Cleaning wipes or rubbing alcohol
- Measuring tape
- Wire strippers (if hardwiring is needed)
- Zip ties or adhesive clips for wire management
Installation Steps
- Clean the mounting surface thoroughly to ensure good adhesion.
- Measure and align the light bar in the center of the tailgate bottom edge.
- Peel off adhesive backing and press the light bar into place firmly.
- Route the wiring toward the trailer harness plug or the hardwiring location.
- Connect the plug to the truck’s trailer harness or wire according to the provided diagram.
- Secure the wiring with zip ties and ensure it’s away from moving parts or hot surfaces.
- Test all light functions before finalizing installation.
Installation can typically be completed in under an hour. However, if your light bar has complex wiring or you’re unsure about connecting it to your electrical system, it’s advisable to seek professional help.
Legal Considerations
Before installing an under tailgate light bar, make sure it complies with local vehicle regulations. In some areas, flashing lights, specific colors, or excessive brightness may be restricted. Most manufacturers design their products to be DOT (Department of Transportation) compliant, but it’s still best to verify.
Popular Use Cases
Daily Commuters
Drivers who spend a lot of time in traffic or commute during early or late hours benefit from the extra visibility a tailgate light bar offers. It enhances their safety in busy environments where standard taillights may not be as noticeable.
Work Trucks and Utility Vehicles
For work trucks, especially those used at construction sites or in delivery services, added visibility can prevent accidents and improve workflow during early morning or nighttime operations. A bright reverse light function is particularly useful when backing into tight spaces or low-lit areas.
Off-Road and Recreational Drivers
For off-roaders and weekend adventurers, tailgate light bars offer additional lighting that’s essential in trails, campsites, or remote locations. They also contribute to the rugged aesthetic of lifted trucks and 4×4 vehicles.
Maintenance Tips
- Periodically clean the LED strip to prevent dust or mud buildup that can reduce brightness.
- Inspect the wiring for damage, especially if you frequently drive in rough terrain.
- Check that all lights function properly before long trips or nighttime driving.
An under tailgate light bar is a smart upgrade for any truck or SUV owner looking to improve both safety and style. These versatile LED light strips offer enhanced rear visibility, modern aesthetics, and greater communication with other drivers on the road. From installation to everyday use, they provide a practical solution with lasting impact. As long as you choose a high-quality product and install it correctly, a tailgate light bar will serve as a valuable addition to your vehicle’s lighting system for years to come.