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SL 100 Rear Battery LED Bike Light

Sale price: $5.99 Regular price:
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Sale price: $5.99 Regular price:

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Model: 8322808

Product Videos

Product Features

A photo of the SL 100 Rear Battery LED Bike Light in use

SL 100 Rear Battery LED Bike Light is designed for BEING SEEN effectively from the BACK when out riding occasionally.

Battery-powered LED front bike light, perfect for occasionally cycling to BE SEEN from the FRONT. Easy to use with its 2 modes (continuous or flashing) and its elastic fastening system.


Power: 2.5 lumens Visible from the back Continuous and flashing mode.

Battery life

Continuous mode 32 hrs Flashing mode 44 hrs 2 CR2032 batteries (included)


RED 2 modes (continuous and flashing) Universal elastic mount

Product Customer Reviews

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SL 100 Rear Battery LED Bike Light,yellow
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Nice product for all levels of cyclist!

Simply does its job, makes you to be seen in the dark.

Cycle front light

It's not charging .. looking for replacement

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Dear Pankaj,

Thank you for taking time out to review our product. Safety Light 100 is a cell powered light with flash and steady mode. It is not a rechargeable light. If the light doesn't function, please feel free to visit your nearest Decathlon store to proceed for an exchange.

Thank you!

Ebin M

Very important product works well

This is mandatory product for your safety.

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Very useful and compact

The light is nice and bright. Very compact and lightweight. It has a flat watch type battery which lasts very long. It is not waterproof so cant use it in the rain. Overall great product. Value for money

Value for money

Value for money and very handy product ..light has a good coverage area..helpful in dark

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very useful

Good value,can be attached to rucksacks,bikes,scooters for safety.the kids love them,but useful for adults also

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Over priced

Highly over priced

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Dear Mohammed,

Thank you for taking time out to review our product. At Decathlon, we strive to provide the best price-value ratio. We take your feedback seriously and will continue to make sports accessible to the many.

Thank you.

Ebin M

Good value for money

A must. Better to be seen than sorry. It has different settings. All my bikes and helmet have this.

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Purchased this one on 7th April, 2019. But, opened the sealed few days back and used for just once for around two hours. Then, it started showing switch on/off issues. After multiple tried, took to Decathlon Uppal, Hyderabad. Where, the person at counter checked and said the battery has drained out and there's no manufacture defect issue. So, can't be replaced. How can a battery drain out in just two hours run? Second, when I asked to show with alternate battery, they said they don't have any spare battery to test. Then, on what basis, did they checked the defect one? First time I experienced such bad product from Decathlon...

Dear Subhakar,

Thank you for taking time out to review our product. I regret the inconvenience caused to you. It is highly unlikely that the battery drains out so quickly. It is designed to last for 32 to 44 hours in continuous mode and flash mode respectively. We will definitely replace the product for you. Please reply regarding the date you are planning to visit your nearest Decathlon store. I will make the necessary arrangements to ensure a seamless experience.

Thank you!

Ebin M



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I have fastened it to my helmet

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Very good product

I have attached these product on my son’s bicycle. Blinking light can be seen from very far . It gives lot of safety.

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Useless light-do not buy

I ordered this light as I wanted to go for PBP-2019, where I needed a good rear light to be used over 3-4 nights over 1200 kms. distance. However the light has multiple issues: 1. With slight drizzle also water enters the light and it starts malfunctioning. The claim of water proof is entirely wrong. 2. The light stopped working midway of the ride after 1-2 hrs. of use, inspite of claim of 44 hrs. lasting. It becomes dangerous for the rider as rider is under impression that rear helmet light is working but it failed. Hence it is highly unreliable. 3. 44 hrs. claim of lasting is a false and unverified claim. It must be removed from website. 4. After trying to make the light function again, it fails to start many times, or even switches off in between because the batteries do not snugly fit inside and become loose due to bicycling jerks. 5. There are much better light available for much lesser price in the market which can give better reliablity and longivity. Unfortunately there are not many websites selling such products online in India and that is why such decathlon products are unfotunately ordered which gives frustration to customers.

Dear Shishir,

Thank you for taking time out to review our product. I am extremely sorry our light did not meet your expectations when you needed the most during such an important race. In spite of quality check, I believe you must have received a defective unit. Please visit your nearest Decathlon store to proceed for a return or exchange.

All product features such as light output and battery capacity are tested in our labs.

Thank you!

Ebin M

Unavailability of batteries

I have had this for quite some time now and it is a good product. Its batteries have died and the ones available on the market do not fit. Decathelon should sell the batteries separately as well.

God value light

Good bright light at a cheap price

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Additional Product Information



  • 100% Acrylonitrile butadiene styrene

Inner shell - Main fabric

  • 100% Printed circuit board


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.


LED brightness: 2,5 lumens



Product testing

Laboratory tests have been carried out to approve the 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 thousands of pedal strokes.

Care instructions

Remove the electronic device from the VIOO before cleaning the flexible part with clean water and soap.

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