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Elops ST520, Front/Rear LED USB Bike Light
Front and back rechargeable LED light kit with a continuous and flashing mode for being seen both day and night.
Free shipping over $35
See our return rules
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Features

Visibility
Power: 5 to 20 lumens Continuous or flashing mode
Battery life
Flashing mode: 9 hours Continuous mode: 5 hours Rechargeable via micro USB
Versatility
WHITE (1 mode) and RED (2 modes) Universal elastic mount
Waterproof
IPX 4: withstands spray and heavy, persistent rain.
Product Customer Reviews

Works well
Good
Happy with the purchase, battery is quite good
No strong enough and get flat quickly
The addition of flashing feature greatly improves the light set from what was available I’d only suggest the rear light be able to be mounted vertical to tuck in on seat post more aerodynamically
Good quality and easy to use.
I Purchased 2 sets almost two years ago for myself and my son but used only a handful of times, they no longer hold their charge. Would not recommend.
Battery in both is completely dead, won’t even hold charge for 1 second. Shows green when plugged in. As soon as it’s unplugged it doesn’t turn on. Have had them charging for days to no avail.
They no longer hold a charge even for a few hours not being used. Can’t rely on them for safe night riding.
The light is bright and works as advertised. The problem is in recharging. Even after it shows to be fully recharged (when the charging light turns green), it might not be so. I now recharge the lights by a series of plugging the charging cable until "fully charged" light comes on, unplugging the charging cable and then reattaching it again to the next "full charge". Even then I have no idea if it is really charged up or not.
Back light is great but front light no longer holds charge. The input port on the device is in an awkward position and I think it's been damaged over time.
I have had these lights for about 2 months and the front light no longer works. I have only used them about 10 times and the front light does not charge. I tried charging it overnight and with 1 minute of switching it on, the small red light appears and the light switches off. Not acceptable to happen when cycling in the dark as this is very dangerous.
Perfect
I've only recharged the front light about 5 times and it no longer holds the charge.
Great value for money
Additional Product Information
Composition
Lens
- 100% Polycarbonate
Inner tent
- 50% Pcba
- 50% Battery - Lilo
Structure
- 100% Silicone
Visibility
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.
Performance
Battery capacity: 160 mAh (500 cycles guaranteed) LED light power: - White mode: 20 Lumens, - red mode: 5 Lumens.
Origin
Imported
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.
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
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Elops ST520, Front/Rear LED USB Bike Light
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
