Bright Motorcycle LED Underglow Kit with Brake & Turn Signal

In this review the SUNPIE 18PCS Bright Motorcycle LED Underglow Kit is judged as a practical way to add visibility and style to a wide range of bikes. The bottom line: riders who want bright, customizable underglow with built-in safety functions will appreciate this kit because it pairs high-output 5050SMD LEDs with brake and turn signal integration, Bluetooth control and two remotes for flexible operation. Installation is straightforward for those comfortable with basic wiring and the kit includes a fuse and switch wire to protect the battery.

Key Features

• Bright 5050SMD LEDs: The 216 RGB LEDs deliver strong illumination that improves visibility for other motorists during night or low-light rides.
• Multiple Colors and Modes: With millions of color options and 29 modes, riders can choose flashing, jumping, fading or static looks to suit personal style or conditions.
• Brake Light Function: All strips switch to bright red when braking, increasing noticeability and returning to the prior mode when released.
• Turn Signal Integration: The kit flashes all LED strips in amber for turn signaling so actions are more visible to nearby traffic.
• Bluetooth and Dual Remotes: Control via app or two RF remotes for on/off, brightness, speed and mode selection, plus voice and timed controls for convenience.
• Protective Wiring: Included fuse and switch wire help manage current and protect the battery from voltage spikes up to 15V during engine start.

Who It's For

This kit is well suited to riders who want a visible, customizable underglow on street bikes, cruisers or sport models and are comfortable doing a modest amount of wiring. It supports many common 12V motorcycles, ATVs and similar vehicles, making it a good fit for owners of Harley, Honda, Kawasaki, Suzuki, Yamaha and others who need both style and extra safety at night.

It is less appropriate for riders who want a plug-and-play harness with long pre-routed wires or who require commercial-grade waterproofing for continuous submersion. Also, buyers seeking a lifetime failure guarantee should note the product comes with a 3 year warranty and a 30 day refund window rather than indefinite coverage.

Pros & Cons

Pros

• High brightness and attractive light quality make the bike more visible and stylish.
• Brake and turn signal functions add real safety value beyond decorative lighting.
• Flexible control options via Bluetooth app and two RF remotes, including voice and timer features.

Cons

• Some customers report mixed long-term reliability, with a few units failing early.
• Wire length has been noted as short by some installers, which may require extension on larger bikes.

Specifications

LED type	5050 SMD RGB
Number of LEDs	216 RGB LEDs
Modes	29 modes (flashing, jumping, fading, static, strobe)
Power supply	DC 12V (handles up to 15V startup spike)
Control	Bluetooth app + 2 RF remotes (voice, timer, shake-to-change)
Safety functions	Brake light (red) and turn signal (amber) on all strips
Warranty	3 years + 30 day refund

Our Verdict

The SUNPIE underglow kit is a strong value for riders who want bright, customizable illumination with integrated brake and turn signaling. It combines high-output 5050 LEDs, versatile controls and protective wiring into a package that improves both safety and style, though installers should check wire length and be aware of occasional reliability reports.

Frequently Asked Questions

Will these strips work on my motorcycle?
They are designed for 12V motorcycles and similar vehicles; the kit lists wide compatibility with many common brands and includes a fuse and switch wire for battery protection.

How do the brake and turn signal functions operate?
The brake function forces all strips to bright red while braking and reverts after release; the turn signal flashes all strips in amber to increase visibility.

How can I control the lights?
Control is available via a Bluetooth app with voice and timer features and by two RF remotes for on/off, brightness, speed and mode selection.