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Auxiliary & Accessory Lights

This collection covers seven auxiliary LED lighting options for ground, underbody, interior, entry, and accent applications, including 9W rock lights, 18mm puddle lights, Bluetooth RGB/RGBW systems, a vehicle-specific Jeep interior kit, and flexible 5050 LED strips. Universal and vehicle-specific options offer different mounting, wiring, and control methods for cars, trucks, SUVs, and Jeeps.

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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.

Automotive Auxiliary Lights for Visibility, Safety & Vehicle Styling

This collection focuses on automotive auxiliary lights for cars that function as supplemental illumination devices that support primary headlights, improve vehicle visibility, or enhance aesthetic lighting around the vehicle body.

All products in this collection use LED (Light Emitting Diode) solid-state technology, where light is generated through electroluminescence in semiconductor diodes instead of filaments or gas discharge. Compared with halogen accessory lighting, LED modules provide higher efficiency, lower heat output, and longer operational lifespan, typically exceeding 25,000 hours.

Auxiliary lighting systems are commonly installed on trucks, SUVs, Jeeps, and passenger cars, operating on 12V automotive electrical systems. They are used for multiple lighting roles, including auxiliary headlights, backup illumination, underbody lighting, puddle lighting, rock lights, and interior accent lighting.

What This Collection Includes

The collection includes 7 auxiliary lighting product categories, each designed for a specific lighting function.

  1. 9W Off-Road White LED Rock Light — 9W solid-state LED rock light using three CREE XBD LEDs for wheel wells, chassis, underbody areas, and other close-range illumination. Its compact powder-coated aluminum housing supports flat-surface mounting for off-road, exterior, interior, and custom applications.
  2. 10W Universal 18mm LED Puddle Lights (Pair) — Compact 18mm COB LED accessory lights designed for ground and entry illumination. Available in white, blue, and yellow, with a published 120–140LM output and aluminum-frame construction.
  3. Multicolor RGBW Rock Lights with Bluetooth Control — RGBW rock-light systems available in 4- or 8-pod configurations. Each pod contains 24 LEDs with dedicated red, green, blue, and white emitters, while the Bluetooth app and remote control let you adjust color, brightness, and effects for off-road and custom lighting.
  4. RGB Multi-Color LED Strip Light Kit (Bluetooth) — A 12V interior accent-lighting system using four 5050 SMD LED strips with 15 LEDs per strip. Bluetooth phone control provides color, brightness, ON/OFF, jump, fade, and music-responsive modes, while adhesive backing supports interior installation.
  5. Jeep Grand Cherokee 2012–2014 LED Interior Lighting Kit — A vehicle-specific interior upgrade containing 12 LEDs: 8 interior lights and 4 vanity-mirror lights. The kit is designed specifically around the listed Jeep Grand Cherokee application.
  6. Multicolor RGB Vehicle Underglow Kit (Bluetooth) — A four-strip exterior underglow system using two 36-inch and two 48-inch waterproof RGB 5050 SMD strips. Bluetooth control, music mode, plug-in power, and hardwire capability support customizable underbody lighting on compatible 12V vehicles.
  7. 16FT 5050 300 SMD LED Roll (3M Tape) — A 5m/16ft flexible 12V strip containing 300 SMD5050 LEDs, available in white, red, blue, and green. The strip uses adhesive backing and can be cut at marked points every three LEDs for custom-length installations.

Each product entry integrates entity attributes and values: wattage (9W,10W), physical size (18mm puddle lights, 16FT/5M roll), LED type (5050 SMD, RGBW, CSP where used), control method (Bluetooth app), and mounting style (surface/underbody/interior, adhesive-backed strip, or vehicle-specific harness).

Practical Notes, Legal & Safety Considerations

  • Electrical: Most options are designed around 12V vehicle electrical systems. Follow the product-specific wiring method and use suitable circuit protection when hardwiring accessories.
  • Thermal & Durability: Exterior products use construction suited to their intended environments, including powder-coated aluminum rock-light housings and waterproof strip designs. Verify the published weather or IP rating for the specific product before submersion, marine use, or repeated high-pressure water exposure.
  • Compliance: Colored underglow and other exterior accent lighting may be restricted on public roads depending on state or local law. Check permitted colors, operating modes, and usage before road use.
  • Color Selection: White and yellow lighting can suit visibility-oriented applications such as puddle or ground lighting, while RGB/RGBW systems are primarily intended for customization and accent lighting. Red, blue, and flashing exterior lighting may be restricted in many jurisdictions.

Why Choose Underground Lighting Auxiliary Lighting Collection

  • 3 Practical Visibility Gains

    Underground Lighting rocker/rock lights and puddle lights provide ground-level illumination, help with curb/obstacle detection, and make ingress/egress safer at night by reducing trips and steps in parking areas.

  • 4 Installation Options (Plug-in, Hardwire, Adhesive, Vehicle-Specific)

    Underground Lighting auxiliary lighting options support quick plug-and-play or permanent installs using included harnesses and 3M adhesive backing, fitting common vehicle wiring standards (12V DC).

  • 2 Control Modes (Manual + Bluetooth App)

    Underground Lighting RGB/RGBW products enable instant static color or dynamic pattern selection; Bluetooth control lets you schedule scenes and use phone-driven pattern presets for fleet or show configurations.

  • Up to 5 Use Cases per Kit

    Underground Lighting auxiliary lighting options support underglow, wheel well lighting, truck bed accent, interior ambient lighting, and puddle/entry illumination — making each product multipurpose for daily driving and off-road use.

  • >10× Longer Service Life vs Incandescent Accessories

    Underground Lighting solid-state LED modules offer a longer service-life advantage over traditional incandescent accessories, reducing replacement frequency and ongoing maintenance.

  • Vehicle & Application Fitment for Trucks & Jeeps

    Underground Lighting offers vehicle-specific kits (e.g., Jeep Grand Cherokee 2012–2014) and universal modules (rock lights, 18mm puddles, 16FT strips) to support fitment for Ram 1500, Ram 2500, Ford F-150 grille/underglow, and Jeep Wrangler accessory lighting projects.

How to Choose the Right Auxiliary LED Lights

Start with where the light will be installed and what you need it to do. Then confirm fitment, power requirements, and control method before choosing the style.

  • Ground or trail illumination: Choose white rock lights for focused functional light around wheel wells and underbody areas.
  • Ground entry lighting: Use 18mm puddle lights where a compatible mounting point is available around a door, mirror, or panel.
  • Color plus functional white: Choose RGBW rock lights when you want both dedicated white output and customizable colors.
  • Interior accent lighting: Use the Bluetooth interior strip kit or the vehicle-specific Jeep Grand Cherokee kit, depending on fitment.
  • Exterior underbody effects: Choose the four-strip RGB underglow kit for front, rear, and side underbody placement.
  • Custom-length strip lighting: The 16ft 5050 LED roll can be cut every three LEDs at the marked locations.
  • Check installation requirements: Confirm 12V compatibility, available mounting space, wiring route, and whether the product is intended for interior or exterior exposure.

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

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Auxiliary LED Lighting FAQs

Underground Lighting auxiliary products currently start at $11.99 for 18mm puddle lights and range up to $189.99 for the 4-pod RGBW rock-light system. Rock lights, interior kits, underglow systems, and flexible LED rolls fall between those price points depending on configuration and active promotions.

Yes. Any accessory that remains powered while the engine is off can discharge the battery over time. The effect depends on current draw, number of lights, operating time, and battery condition. A switched and properly protected circuit prevents unnecessary operation when the lights are not required.

Yes. Any accessory that remains powered while the engine is off can discharge the battery over time. The effect depends on current draw, number of lights, operating time, and battery condition. A switched and properly protected circuit prevents unnecessary operation when the lights are not required.

They can if the combined electrical load, wiring size, fuse, switch or relay capacity, and vehicle circuit are suitable for the total current draw. Larger multi-light installations may be better separated into independently protected circuits.

First, confirm that the controller has stable 12V power and Bluetooth is enabled on the phone. Restart the lighting system and app, check Bluetooth permissions, and move closer to the controller. If another phone is already connected, disconnect it before attempting a new pairing.

Adhesive performs poorly on dusty, greasy, textured, or recently treated plastic surfaces. Clean and dry the mounting area before applying the strip, avoid repeatedly removing and repositioning the adhesive, and add suitable clips or mounting support where the surface does not provide a reliable bond.

Yes. Underground Lighting's 16ft/5m 5050 SMD roll is designed to be cut every three LEDs at the marked locations. Wire can then be soldered to the designated cut points when separate sections are needed.

No. Universal means the product is not tied to one specific vehicle model or factory bulb socket. You still need suitable mounting space, the correct electrical supply, safe wiring routes, and enough clearance for the light, controller, or wiring.

Warranty length is different for each product. The puddle lights, RGB interior strip kit, RGB underglow kit, and 16ft LED roll have a 1‑year warranty. The white and RGBW rock lights have a 2‑year warranty. The Jeep Grand Cherokee 2012–2014 interior kit has a 3‑year warranty.

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