Getting clipped by a car that "didn't see you" is one of the most preventable risks in cycling. This LED bike tail light mounts to the seatpost in seconds with a tool-free elastic strap and lights up with bright COB LEDs in a choice of 6 colours, giving drivers behind a clear, unmistakable warning instead of relying on reflectors alone.

As a genuinely useful bike light rather than a novelty, it runs multiple brightness and flash modes from one button, charges fully in about 40 minutes over USB-C, and holds a charge for up to 12 hours on its lower-brightness and flash settings — ready for a full week of commutes between charges.
Please note: under UK road law (the Road Vehicles Lighting Regulations 1989), a bicycle ridden on a public road between sunset and sunrise must display a red rear light. The Red colourway is the option to use for legal road riding after dark. The other 5 colours (Blue, Pink, Green, Orange, Yellow) are great for off-road riding, trail use, styling or extra daytime visibility, but shouldn't be relied on as your legally required rear light on public roads at night.

Why It Stands Out
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High-brightness COB LEDs — even light penetration for a clear warning signal as a genuine bicycle rear light, not a dim afterthought.
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6 colour options — Red, Blue, Pink, Green, Orange and Yellow, so it's easy to match a bike or just stand out more (see the road-legal note above).
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Multiple modes, one-click switching — steady strong, flash and pulsing modes without digging through a manual.
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300mAh battery, USB-C charging — about 40 minutes to a full charge.
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Up to 12 hours of runtime — on medium brightness or flash mode, 8 hours on high brightness.
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Tool-free elastic strap mount — adjustable bracket angle, fits most seatposts without tools.
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Water-resistant, -30°C to 65°C rated — built to handle real riding conditions, not just dry summer evenings.
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Just 25g — adds effectively no weight to the bike.

Where to Use It
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Commuting in low light — dawn or dusk conditions where rear visibility matters most (use Red for road riding after dark).
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Road and commuter bikes — as a dedicated bike tail light near traffic.
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Off-road and trail riding — where the extra colour options add visibility and personalisation without road-lighting rules applying.
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Any regular rider — as a general-purpose bike light for anyone riding near cars.

How It Works
- COB LEDs distribute light evenly across the lens instead of a single bright point, improving visibility from an angle.
- A single button cycles through steady and flash modes to balance visibility against battery life.
- The elastic strap stretches around most seatpost shapes and sizes without tools or brackets to lose.

How It Compares
| Feature |
This LED Bike Tail Light |
Basic Reflector |
Standard Single-Mode Tail Light |
| Visibility |
High-brightness COB LED, 6 colours |
Passive only, needs external light source |
Single colour, fixed brightness |
| Modes |
Multiple brightness + flash modes |
None |
Usually 1–2 |
| Battery life |
Up to 12 hours |
N/A, no battery |
Varies |
| Mounting |
Tool-free elastic strap |
Often permanent/adhesive |
Varies |
Setting It Up and Using It
- Charge fully via USB-C before first use (about 40 minutes); the indicator glows red while charging and blue when full.
- Adjust the bracket direction to aim the light where you want it.
- Secure the elastic strap around the seatpost without tools.
- Press the button to power on and cycle through brightness and flash modes.
- Recharge via USB-C when the light dims, or after roughly a week of regular commuting.
Tip: Flash mode gives the best balance of visibility and battery life on daily commutes.

Care and Maintenance
- Wipe the housing with a damp cloth.
- Avoid submerging it despite its water-resistant rating.
- Store at normal room temperature when not in use.
- Recharge before long-term storage.
Product Specifications
| Product name |
Bicycle warning tail light |
| Shell material |
ABS |
| LED type |
COB LED |
| Weight |
25g |
| Battery |
300mAh, USB-C charging |
| Charge time |
About 40 minutes |
| Battery life |
Up to 8h (high brightness), up to 12h (medium brightness or flash) |
| Colours |
Red, Blue, Pink, Green, Orange, Yellow |
| Mounting |
Tool-free elastic strap, adjustable bracket |
| Water resistance |
Water-resistant |
| Operating temperature |
-30°C to 65°C |
| Storage temperature |
-40°C to 75°C |

What's in the Box
1 × LED Bike Tail Light
1 × Elastic mounting strap
1 × USB-C charging cable