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RGB LED Underglow Lights Kits

Designed for 12V cars and trucks, this RGB LED underglow kit uses four 5050 SMD strips, two 36-inch and two 48-inch, with Bluetooth app control, color and brightness adjustment, fade/jump modes, and music control. The four-strip layout is designed for underbody placement along the sides, front, and rear of the vehicle.

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With a 4.95 average rating across Google and Judge.me, Underground Lighting has earned the trust of drivers looking for dependable LED lighting upgrades. See why customers choose us for fitment support, quality products, fast shipping, and brighter lighting solutions for cars, trucks, and SUVs.

Best RGB LED Undercarriage Lights at Underground Lighting

Undercarriage lights for trucks, or chassis-mounted exterior LED strips, are designed as exterior auxiliary lighting installed beneath the vehicle body, typically along side skirts, frame rails, front bumpers, and rear undercarriage panels to create a visible ground glow.

Unlike traditional neon tubes historically used in tuner vehicles, modern underglow kits use solid-state LED technology, where light is produced through semiconductor LED diodes embedded in flexible strip housings. These LEDs operate on the standard 12-volt automotive electrical system, allowing the kit to integrate with vehicle batteries, fuse boxes, or auxiliary switch circuits.

The system is designed as a multi-strip RGB lighting kit that typically includes four underbody light strips, a Bluetooth lighting controller, and a power wiring harness with fuse protection. Once installed, the system projects a 120–180° beam-angle glow across the ground beneath the vehicle, creating a visible lighting effect around the entire undercarriage.

The Underground Lighting RGB LED Vehicle Underglow Kit uses multicolor LED strips integrated with a Bluetooth control module, letting drivers customize color, brightness, and lighting patterns directly from a smartphone app. These systems typically include multiple LED strips mounted along the front bumper, rear bumper, and side undercarriage, creating a full 360-degree ground glow around the vehicle.

Technology Behind RGB Underglow Lighting

Underglow kits utilize RGB LED technology, where each LED contains three color channels, red, green, and blue, allowing a controller module to mix colors and generate a wide range of lighting combinations.

Some newer underglow systems also use RGBIC or addressable LED technology, where individual LED segments can display different colors simultaneously, enabling advanced effects such as:

  • Flowing color patterns
  • Gradient transitions
  • Chasing light effects
  • Music-synchronized lighting

The Bluetooth control system connects the LED controller to a mobile application, allowing drivers to change lighting settings without installing additional switches.

Read our Guide and choose the best auxiliary lighting for your vehicle.

Why Choose Underground Lighting RGB LED Underglow Lighting?

  • High Visual Impact for Vehicle Styling

    Underground Lighting RGB LED underglow kits transform the appearance of cars and trucks by creating a customizable ground-lighting effect. Multiple colors, lighting patterns, and brightness settings allow enthusiasts to personalize their vehicle style.

  • Fully Customizable Lighting Control

    Underground Lighting RGB underglow systems give drivers control over color selection, brightness levels, animation patterns, and lighting modes through compatible controllers and mobile applications.

  • Smartphone-Based Bluetooth Control

    With Bluetooth-enabled control, Underground Lighting RGB kits allow users to adjust lighting settings directly from a smartphone, making color changes and effect adjustments simple without additional wired controls.

  • Enhanced Night time Vehicle Visibility

    Underground Lighting underglow lighting adds additional illumination around the vehicle exterior, helping improve vehicle presence and making custom builds more noticeable in low-light environments.

  • Durable Waterproof Lighting Systems

    Designed for exterior automotive use, Underground Lighting RGB underglow kits feature protective housings and sealed components to help withstand exposure to road moisture, dust, and everyday driving conditions.

  • Integration with Other Automotive Lighting Systems

    Underground Lighting RGB underglow solutions can complement other vehicle lighting upgrades, including interior LED strips, rock lights, and auxiliary lighting systems, helping create a consistent customized lighting setup.

How to Choose the Right RGB Underglow Kit

Choosing an underglow setup comes down to vehicle voltage, strip coverage, control features, and installation routing. Check these points before installation:

  • Vehicle voltage: This kit works on a 12V DC system.
  • Strip coverage: The set contains two 36-inch and two 48-inch LED strips. Measure the planned mounting areas before installation.
  • Lighting control: Bluetooth app control lets you change color, adjust brightness, toggle ON/OFF, jump, fade, and play modes.
  • Power connection: The kit can use a supplied plug-in power connection or can be connected directly by hardwiring using the wire and the ground wire.
  • Mounting route: Decide where to place the strip and the extension wire, and make sure to keep them away from areas that get very hot, from sharp edges, and from parts of the vehicle that move. 

Watch these helpful Underground Lighting videos for step-by-step guidance, product details, and real-world installation tips.

Need Help With Your Underglow Setup?

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RGB LED Underglow FAQs

Underground Lighting's Multicolor RGB LED Vehicle Underglow Kit is listed at $149.99, reduced from its regular $199.99 price. Pricing and availability can change, so check the displayed product price before ordering.

Underglow regulations depend largely on state law. Restrictions may apply to colors, flashing or animated modes, brightness, and whether the lights are on while driving. Extra lights should also not interfere with required vehicle lamps, so you should check state vehicle-lighting rules before driving. 

Yes, if they remain powered long enough while the engine is off. How fast your battery drains depends on how much power the system uses, how long you run the system, the battery capacity, and the battery condition. I think it is a good idea to switch the underglow system off when the vehicle is parked for a long time. Switching the underglow system off will help you prevent the battery from draining for no reason. 

Waterproof LED strips can handle outside wetness, but high-pressure water can still get into weak controllers, connectors, or broken seals. Make sure electrical connections are safe and protected when putting them in place, and stay away from pointing high-pressure spray at the controller or the wires. 

Make sure the lighting controller is getting 12V power and Bluetooth is turned on in the phone. Move closer to the controller, restart the app, check its Bluetooth permissions, and power-cycle the lighting system.  Another phone already connected to the controller can also prevent a new connection.

Always start by checking the 12V power source, the ground connection, the plug or hardwired connection, and the fuse. A weak ground, a connector, a blown fuse, or an unpowered cigarette‑lighter socket can stop the underglow lights from working.

Loose RGB connections, an unstable 12V supply, poor grounding, damaged wiring, or a seated connector can cause flickering or incorrect colors. Check the power and ground first and then look at each strip connection for damage or bad contact.

Only cut an RGB underglow LED strip when the maker clearly marks the places where it's safe to cut and shows how to fix the cut afterward. RGB underglow LED strips usually come in 36‑inch or 48‑inch lengths. The instructions for these RGB LED strips do not say that you can cut them in the field. If you cut an RGB underglow LED strip without following the maker’s rules, the electrical part could fail. The water seal could fail.

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