







Smart Bike Rear Light
Stop worrying about cars behind you —TailBright™ flashes brighter the moment you brake.
Upgrade your ride with auto-brake sensing, IPX6 waterproof durability, and up to 50 hours of USB-powered runtime. Small in size, huge on safety—see and be seen, whatever the weather.

Invisible on the Road?
You train hard, commute daily, and sometimes roll home after sunset. Yet most rear lights stay dim, forget to shine when you slow, and fail the moment rain hits. Drivers don’t see you early enough—and every ride feels like a gamble.

One Split Second From Disaster
Picture the screech of tyres. Your heart pounds as a car skims past because your outdated lamp never signalled your sudden stop. One mistake, one puddle-soaked circuit board, one dark corner—that’s all it takes to ruin your season.

Meet TailBright™
TailBright™ ends the guessing game. Its built-in Q5 motion sensor detects deceleration in 0.3 s and blasts a 60-lumen brake alert, piercing fog, rain, and traffic glare. Set it once, ride carefree—all brains, zero hassle.

Safety Tech, Built Tough
TailBright couples air-grade aluminum armor with an IPX6 seal, shrugging off downpours and gravel spray. Weighing just 55 g, it mounts on saddle or seat-post in seconds, delivering four intelligent modes and up to 50 h runtime on a single charge.

Multi-Mode Safety
Whether you’re cruising a lit city street or descending a pitch-black country lane, TailBright™ adapts instantly. Switch between Flash, Breathing, Strobe, and Always-On to match traffic density, weather, and speed—each mode blasting a full 60-lumen halo that grabs attention from every angle. One button, four ways to stay seen.

Mount It Your Way
Road bike, gravel rig, or commuter hybrid—TailBright™ fits them all. Clip it to the seat-post for classic placement or tuck it neatly under the saddle rails for a sleek, aero look. The tool-free mount locks in seconds and holds rock-solid over cobbles, curbs, and trails, so you focus on the ride, not your gear.

Specifications
- Dimensions: 40 × 34 × 34 mm
- Weight: 55 g
- Housing Material: CNC-machined aluminum
- Battery: 3.7 V / 400 mAh Li-ion (USB-C)
- Runtime: 20 – 50 h (mode-dependent)
- Brightness: 60 lumens, 180° beam
- Waterproof Rating: IPX6 (heavy-rain proof)
TailBright™ vs. Typical Rear Lights
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Auto brake-flash alert | ||
IPX6 all-weather seal | ||
Up to 50 h runtime | ||
30 Day Ride Risk Free | ||
Ultralight 55 g aluminum | ||
Seat-post & saddle mount |
Need Answers? We’ve Got You
How do I recharge it?
How do I recharge it?
Plug the included USB-C cable; full in ≈ 1.5 h.
Will it fit an aero seat-post?
Will it fit an aero seat-post?
Yes—elastic mount adapts to round or aero shapes.
Where do you ship from?
Where do you ship from?
Delivery 3-10 business days.
Warranty length?
Warranty length?
30-day money-back plus 12-month defect coverage.
Cleaning advice?
Cleaning advice?
Rinse gently and wipe—do not use solvents.