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Bike Light Front LED USB FL 500

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Sale price: $19.99 Regular price:

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Model: 8327941

Product Features

A photo of the Bike Light Front LED USB FL 500 in use

Bike Light Front LED USB FL 500 is designed for providing effective lighting when you ride in low-light conditions; for everyday use.

Rechargeable front USB LED bike light, approved for French and German (STVZO) highway code road use. Perfect for everyday cycling use to SEE

Visually efficient

Power: 10 lux Narrow beam Effective at low speed.


Power: 26 lumens Continuous mode

Battery life

Continuous mode: 2 hours Rechargeable via USB.


WHITE (just 1 mode) Elastic mount for all size handlebars


IPX 4: withstands spray and heavy, persistent rain.

Product Customer Reviews

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556 Reviews
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Bike Light Front LED USB FL 500,black
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FL 500 LED USB Front Bike Light Btwin

Bought this light for commuting, nice & bright

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Despite it being fully-charged, the light went off completely after less than an hour of use on 2 nights, and I had to ride home without front light. This is the first time that I have bought and used any of your products that seems to be "faulty". I will give it a final try one of these nights (but will have a spare light).

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Bright light at an affordable price point

Was surprised at how bright and distant the light could go. Definitely helped riding at night. Had some issues fitting it on an handlebar extension so best to check the diameter of your bar first before purchasing

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Hello Fahrul,

Thank you for taking time in leaving a review for FL 500 LED USB Front Bike Light. I'm glad that the brightness surpass your expectation and helped to shine your path while you're cycling at night. Do check out this rear light for your night cycling as it will provide additional safety as well. 

The skinny mechanic
City Square Mall Workshop
Poor quality

Bought yesterday to replace a broken light fitting (and thus no way to mount my normal light) for my commute. Charged fully when I got home and fitted to bike this morning. Firstly, rubber strap will not fit all handlebars - this fitted at the narrow end but its position was too far left to light up the center of the road. Secondly, no flash mode. Very important for being seen by idiot drivers. Last, after 40 minutes of commute, the charge light started flashing red. By one hour the charge had failed. Promptly took back to store this evening for a full refund. I would not waste my time with this product.

Thank you for your detailed feedback regarding these lights. I have forwarded them all on to our design team at Decathlon Cycles.
Peter, Cycling Manager, DECATHLON
Stopped working after a few months

Great when it worked, bought earlier this year, on a bike kept inside and charged regularly and properly , only used regularly in the last month, now red light shows charging went blue, and light now won’t work. Had to buy new light en route from a competitor. Not a great experience guys.

Thank you for posting a review of your lights. Please return them to us for a refund or an exchange.
Peter, Cycling Manager, DECATHLON
Nice buy

A must utility item especially during darkness / low lighting

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Did not last for even for 1 year

I had brought this bicycle light from Decathlon Bangalore store on airport road in December 2017. I have been using this product since last 6 months & it was working satisfactorily. Few days back the light suddenly stopped working. I kept it for charging for some time, but even after keeping it 2 hours of charging the red led was blinking & light never worked. In fact i was surprised to see that this light did not last even for 1 year when i have been using one more product of Btwin i.e. front bike light with 3 modes for more than 3 years now.

Hello Nandan,

Thank you for taking time out to review our product. I am sorry for the inconvenience caused due to our VIOO 500 Road Front light. This light comes with 2 years replacement warranty. Please visit your nearest Decathlon store to proceed for an exchange.

Hope this helps. Thank you!

Used it on my daughter's scooter

While the space is less on a scooter handle this fit just perfectly

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Below average lighting for Indian roads.

I was told by decathlon staff that the lighting will be sufficient for city roads, but I think you should go for a 10/10 rated lighting instead of this one. My friend has a 10/10 rated lighting and the difference is huge! You won’t be able to see potholes and patches in the road properly with this light at night.

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Dear Sudev, 

Thank you for taking time out to review this product. We regret that this product is not able to meet your usage requirements. We suggest the VIOO ROAD 900 USB LIGHT ( or VIOO CITY 900 USB LIGHT  ( to meet your requirements. Please visit the closest Decathlon Store for an exchange of this product if you are not satisfied with the VIOO 500 Road Light performance. We hope this is helpful. 
A ray of Light in dark

Purchase it for my B-Twin MountainRoad. Visibility of the light is good in dark. Even u can see far. Its a 1st time I have purchased it. Feeling awesome.

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Not right light

Bought it online and paid higher amount It's battery life is short, 2 hours maximum I have got Not comfortable for dark night rides.

Hello Harshvardhan, 

Thank you for taking the time to give us your review. The Vioo road 500 is a start of the range rechargeable light that has a working of 2 hrs. It also has a good focus due to the lens and reflective surface behind the LED. If you need a light for longer durations with more brightness you can consider the vioo 900 (

Bright light - Great value for money

This was bought for my son, easy to use & fit, very bright with long range and rechargeable. Great value for money what more can you ask for!

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Good light

Works well, robust and easy to charge.

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Rechargeable lights

Bought two of these last summer while on hols in France. Have been using them all winter and worked fine until now. My commute is about 30 mins. Both front lights will not switch on even though they appear to be fully charged. This happened to both within two days of each other. Tha back light is still working fine.

Thank you for taking the time to give us feedback on this light.
I will forward your comments on to the product designer.
Please return them to us for a refund/exchange.
Peter Lazarus UK Cycling Market Manager DECATHLON
Not great for longer jorneys

Bought 2 weeks ago. Used every day. Full charge takes hours and then after 40 minutes the warning light comes on. Lasts about another hour after that. Its a good bright light though, with a good beam and good distance. If you are doing short commutes and can charge it in the office its ok. Doesn't flash either which is unusual these days.


Sorry to hear tht you are not happy with the 500 USB light, as the light is quite powerful this drains the battery quicker than the other lights that we have due to the small battery. The lifetime of 1 charge is 2 hours as you have mentioned, this is noted on the packaging and the website.

The light doesn't flash as the light is designed for countries such as Germany & France which have strict laws regarding the lights meaning that they have be to a minimum of 10 Lux and can not flash.

If you are unhappy with the product you can return this to your local store for exchange/refund with proof of purchase.

Rob Basnett b'Twin Product Expert DECATHLON
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Additional Product Information



  • 100% Polypropylene
  • 50% Pcba

Inner tent

  • 50% Pcba
  • 50% Battery - Lilo


  • 50% Polycarbonate
  • 50% Polymethyl methacrylate


Thanks to feedback provided by cyclists and other road users (drivers, pedestrians, etc...), our design teams have defined optimum features linked to cyclists' visibility. With one purpose in mind: ensuring cyclists' safety.


Battery capacity: 200 mAh (500 cycles guaranteed) LED light power: 26 Lumens, 10 lux Fitted with a lens, this bike light narrows the light beam so that you can see ahead of you. Light output is sufficient for a cyclist riding at 9 mph, helping you to avoid road hazards in good time.



Product testing

Lab tests are conducted to approve components: batteries, battery life, UV-resistance, durability, etc. The final product is then tested to simulate the durability of the assembly over time. The light is fitted to a test bike to reproduce the vibrations of cycling on a road for several thousand cycles.

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