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RL 510, USB LED Rear Bike Light

Sale price: $15.00 Regular price: $19.99

Rechargeable (USB) LED rear bike light. Made in France. Rear light certified for use on public roads in France and Germany (one of the strictest standards).

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Sale price: $15.00 Regular price: $19.99

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8577919

Product Videos

Product Features

A photo of the RL 510, USB LED Rear Bike Light in use

RL 510, USB LED Rear Bike Light | Our design teams have developed this USB rechargeable rear light to BE SEEN from BEHIND! 1 mode and elastic mount make it easy to use.

Rechargeable (USB) LED rear bike light. Made in France. Rear light certified for use on public roads in France and Germany (one of the strictest standards).


Power: 3 lumens Visible from 220° Continuous mode. Certified for road use

Battery life

Continuous mode 5½ hrs Rechargeable via USB.


Elastic band for the seat tube and clip for your helmet and other gear


IPX 4: withstands spray and heavy, persistent rain.

Product Customer Reviews

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158 Reviews
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RL 510, USB LED Rear Bike Light,base color
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Bike light

Staff helped me find this light that fits neatly on the rear mudguard of my scooter and is rechargeable :) Brilliant

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Rear lights

Reliable lighting

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Genau das was ich gesucht habe

Die Lampe ist genau das was ich gesucht habe. Kann die Lampe an verschiedenen Taschen anbringen die diese Stecklampen unterstützen. Leichte sehr stark und lang

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Das Rücklicht an sich ist gut, aber...

... das Gummiband zur Befestigung der Halterung an die Sattelstange war nach kurzer Zeit porös und unbrauchbar. Schade, weil die Rückleuchte gut ist. Ich trage sie jetzt an Helm oder am Rücksack.

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Prima Rücklicht

Klein, aber doch sehr hell. Die Lampe ziert nun das Heck meines Hundeanhängers.

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Doppelter Lichtschutz

Da ich das ganze Jahr mit dem Rad auf der Straße liege, ist die 2. Garnitur meine Lebensversicherung.

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Tolle Ergänzung

zu den Van Rysel Helmen. Akkulaufzeit habe ich noch nicht gemessen, aber sie dürfte deutlich über dem liegen was in der Beschreibung angegeben ist.

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Bin sehr zufrieden!

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hell, Akku sehr schnell geladen

bisher keine Erfahrung mit der Leuchtdauer; gefühlt recht teuer, Vorteil: passende Halterung war bereits am Fahrradhelm vorhanden (praktisch)

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Verwendung am Fahrrad Rahmen oder auch am Rucksack. Leuchtet lange und ist gut sichtbar.

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Praktisches Rücklicht

Variables Rücklicht, geeignet für meinen Gepäckträger, sehr gut sichtbar.

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Super, weil aufladbar und gut anzubringen

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Tolles Rücklicht

Sehr leichtes Rücklicht, praktisches Laden mit USB-Kabel, große Leuchtfläche, leichte Montage

Praktisches Rücklicht

Leicht zu handhaben, funktioniert einwandfrei.

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Super zufrieden, gute Qualität !!!!

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Additional Product Information



  • 0% Acrylonitrile butadiene styrene
  • 0% Rubber - Thermoplastic
  • 2% Silicone
  • 4% Steel
  • 4% Polybutylene terephtalate
  • 5% Rubber - Thermoplastic
  • 5% Copper
  • 5% Acrylonitrile butadiene styrene
  • 8% Pcba

Safety for everyone

As a result of feedback provided by cyclists and other road users (drivers, pedestrians, etc.), our design teams have defined optimum features linked to cyclists' visibility. With 1 purpose in mind: ensuring cyclists' safety. Equipped with a special lens, this bike light ensures you are SEEN at a 220 degree angle! And especially an angled light beam. For the same power, approved lighting makes you more visible than non-approved lights.

Stick it where you want!

Whether it's strapped to your seat post or clipped to your helmet, the RL 510 light adapts to your every need. Its clip lets you attach it to any B'Twin helmet or other compatible bike accessory.

Usb charger

The battery warning light comes on 30 minutes before your lights are going to run out of power. The warning light flashes red. It takes 2 hours to fully recharge via its micro USB cable when plugged into a computer or 5V 500mAh adapter.

Look after your lights

If you don't use your product for a long time, the LiPo battery might shut itself down. Remember to charge it every 3-4 months when not in use. In addition, avoid leaving your lights somewhere cold for long periods. LiPo batteries don't like the cold as it makes them lose capacity, so they won't last as long.

A long life

Your product has been designed for a minimum of 2500 hours of use - that's almost 25,000 miles for the average cyclist (commuters and sport cyclists). If needed, spare parts for this product are available from the after-sales service and on our website.

Technical specifications

LiPo battery capacity: 320 mAh (500 cycles guaranteed) LED light power: 3 Lumen. Sold with a micro USB cable and mount.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual