XKmax ULTRA Aluminum LED Underglow Light Kit with RGBW Color Chasing | App-controlled

How to choose your kit:

Each kit comes with 2x2ft tubes for the front and 2x 2ft tubes for rear. We offer 4 kit options with different tube length (5'/6'/7'/8') for the side of your vehicle. 

Key Features:

• Leaving No Dark Spots Behind: Now with end-to-end connections, providing the perfect, gapless look you're going for.
• Enhanced LED Light Tubes: Impact-resistant, IP67 waterproof, rugged aluminum tubes designed for premier underglow lighting use. 
• Brighter than Max: Now 2.7x brighter than our standard XKmax car kit, giving you more than ever before.
• Chasing Light Functions: Powered by addressable RGBW LEDs for dynamic chasing patterns and flowing dream color effects.
• Brightest RGB + Pure White LEDs: 16 million RGB colors with a dedicated pure white LED, up to 80% brighter than competitors.
• Key Fob & Bluetooth App Control: Customize LED lights via phone app or program quick access with the 4-button key fob.
• Custom Themes & DIY Builder: 28+ pre-built chasing light themes with customizable colors, patterns, speed, and brightness, plus a DIY builder.
• Music & Speed Sync: Sync lights in real-time with music, vehicle speed, or acceleration. Compatible with third-party apps.
• Customizable Sensors & Startup Mode: Sync lights with turn signals, brakes, and courtesy lighting using 3 sensor wires and programmable startup mode.

CLICK EACH COLUMN TO VIEW KIT DETAILS

If you’re searching for the ultimate underglow kit that wraps your entire vehicle in seamless light—no matter what you drive—and even outshines those lifted trucks with rock pods on the show floor, you’ve found it.

The XKmax Ultra Kit packs nearly three times the brightness of our standard XKmax tubes, delivering unmatched glow and intensity. Thanks to its ultra-thin end cap design, you can mount two tubes end-to-end for a flawless, continuous beam of light. With 2ft, 3ft, and 4ft tube options available, you’ll always have the flexibility to combine lengths and achieve the perfect fit for your ride’s sides.

Tech Specs

• 3 programmable sensor wires.
• Firmware update capability.
• Individual tube max power @13.6V
  • 2ft tube: 14.4w
  • 3ft tube: 21.6w
  • 4ft tube: 28.8w
• Kit max power @13.6V:
  • ULTRA5 - 146.9w
  • ULTRA6 - 163.2w
  • ULTRA7 - 179.5w
  • ULTRA8 - 195.8w

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