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 or sealed 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, producing 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, enabling drivers to customise colour, brightness, and lighting patterns directly from a smartphone application. These systems typically include multiple LED strips designed to mount along the front bumper, rear bumper, and side undercarriage, producing a full 360-degree ground glow around the vehicle.
Technology Behind RGB Underglow Lighting
Underglow kits utilise RGB LED technology, where each LED contains three color channels — red, green, and blue — allowing a controller module to mix colors and generate millions of possible lighting combinations.
Modern kits may also include 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-synchronised 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
