GOTUS Programmable LED Smart Bike Tail Light — App-Controlled Rear LED Display with Speedometer for Kids & Adults, IP65 Waterproof

The GOTUS Programmable LED Smart Bike Tail Light is an app-controlled rear light that displays custom text, animated patterns, and speed data using a bright 432 full-color LED matrix.

This compact, weatherproof bike tail lamp combines visibility and personalization: connect via Bluetooth to the CoolLED1248 app to create messages, pick animations, adjust brightness and speed, and show a live speedometer. Designed for commuters, road cyclists and family rides, the light balances long runtime with vivid color and easy mounting so you can stay seen and recognizable after dark.

How do I program messages, patterns and animations?

Use the CoolLED1248 app (Bluetooth) to design or select your visual content. Upload text, GIF-style animations, or choose from the built-in library. Settings let you change color, brightness, animation speed and loop style for each display scene.

• Create custom scrolling text or select preset animations from the app library
• Adjust brightness and animation speed to match daytime or night use
• Save multiple profiles and switch them on the fly via Bluetooth

What visibility and durability features does this tail light offer?

The module uses 432 full-color LEDs to deliver a bright, highly visible display across its matrix while keeping shapes and text legible from typical riding distances. The housing is rated IP65, so it withstands rain and splashes, and the mounting system secures the light to seatposts or racks.

• 432 full-color LED beads for vivid, easily read images and text
• IP65 waterproofing protects against rain and road spray
• Sturdy mount fits most seatposts and racks for secure positioning

How long will the battery last during rides?

A single full charge keeps the display illuminated for about 8–12 hours depending on brightness and animation intensity. Lower brightness or static displays extend runtime, while brighter, fast-moving animations use more power.

• Typical run time: 8–12 hours on a full charge
• Power use varies with brightness, color richness, and animation speed
• Rechargeable via USB for convenient top-ups between rides

Can it show speed and other ride data?

The GOTUS tail light can display a live speed readout through the app connection when paired with the bike’s motion data, providing a glanceable numeric speed indicator on the LED matrix. Use this feature to monitor pace or share information with following riders.

• Displays real-time speed on the LED matrix when configured
• Combine speed readouts with custom text or icons for clarity
• Switch between informational and decorative modes depending on need

Who is this for? Whether you commute through city traffic, ride evening loops on local trails, or outfit a child’s bike for family outings, this GOTUS tail light is built for cyclists who want to improve visibility and add personality to their ride. It suits adults and kids, road and mountain bikes, and riders who prefer the convenience of Bluetooth control, extended battery life, and weather resistance. The programmable display makes it useful for everyday safety, group rides, and creative expression on two wheels.