VIOO 900 USB Front LED Bike Light

8320634

B'TWIN

Made for improving the visibility of cyclists, whether day or night.
Very powerful LED light, can be recharged via USB cable. Attach to the handlebars or your helmet.

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Advantage
VisibilityLights up to 30 m, visible from 1200 m. 2 LEDs, 3 continuous modes, 1 flash mode
Autonomyup to 4hr in continuous mode, 6 hr in flash mode. Charge via micro USB cable.
Easy assembly / dismantlingUniversal, tool-free attachment system, fits to all kinds of handlebars
FlexibilitySold with a specific attachment system for fitting the light to your helmet.
Warranty2 Years
Technical Information

1
Visibility
B'TWIN has created the B'VISIBLE label for products that improve your visibility while cycling. This label guarantees high-performance visibility that has been scientifically tested and approved in the lab, available on a full line of B'TWIN products.
2
Battery life
Bright: 2 hrs. Medium: 3.5 hrs. Eco: 7 hrs. Flash: 4 hrs.Charge time: 4 hrs from a USB port
3
Performance
Battery capacity: 1500 mAh. LED brightness: up to 210 Lumen.
Information / Concept / Technology
Composition
Body: ABS and polycarbonate. Attachment system: silicone. 2 LEDs for up to 240 Lumen 1500 mAh lithium battery Micro USB cable and helmet attachment interface included

Product test
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 road cycling through several thousand cycles.

Maintenance tips
Resistance to water: IPX4

Reviews

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VIOO 900 USB Front LED Bike Light
Verified purchase What is a review "Verified purchase" ?

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Used for 2 to 8 weeks
Even the cost is much higher, the product is excellent.
Execellent
Used for 2 to 8 weeks
value for money
Superb
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Used for 1 week or less
Excellent
Must Have
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Used for 1 week or less
I think it is a must have for all cyclist
VIOO 900 USB Front LED Bike Light
Verified purchase What is a review "Verified purchase" ?

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I purchased a very similar light as this one about 3 years ago from a different company and it has been brilliant. Unfortunately the residual battery life is now starting to diminish. I tried to get another from but the same company but they no longer sell them. Therefore, when I saw this one on the Decathlon site I purchased it straight away.

It's early days but the light is working as well as the previous one. It is very bright when on full setting and lasts for over an hour. The fact you can then just recharge it is so handy.

Unfortunately the new light has some changes that I don't like. The usb connection is located in an awkward position obstructed by the securing strap. This causes the cable to not sit correctly and needs to be wiggled to get a proper connection. I've now had to remove the securing strap when I need to charge the light which is a pain. The usb connector is very tempremental.

The new securing strap works OK on the bike but would be better if you could easily release it from the light making it easier to recharge.

The previous light also recharged direct from a usb port off a pc within an hour or two. The new light was connected to a pc port for 6 hours and was still red!

For performance, a great light for the money that is really useful, just a shame the new strap attachment hasn't been properly thought out and the usb connection is dodgy. Seems like the changes have made the product worse rather than improve it. Some things are just best left alone!
short life span of the light
Used for More than 1 year
I bought it on 1/06/16 and it has stopped working on 5/7/17.
Response of the brand
Dear sir,
If you feel that the item is faulty, please contact your local Decathlon store when they can help find a solution for you.
Regards,
Peter Lazarus UK Cycling Market Manager DECATHLON
Good light - awkward fixing system
Used for 3 to 6 months
I have used it all winter in dark Norway and it fulfilled its function.
I have a far better experience than "Carlos" below.
Still I agree that the fixing system is not really good for a light one needs to recharge once a week.
Vioo front light
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Used for 3 to 6 months
Very powerful and reliable light. Well worth the money
Bright USB light poor
Used for 2 to 8 weeks
I do not like the beam, it is concentrated in a circular area, it has not cut-off so I think it is not allowed by StVZO. In any case, it is not appropriate for a focus on a bicycle, because give us much light in front of us and any in 20-30m also it lost a lot of light on the orizon. The dazzling force is just below the cut-off point for those who have the misfortune to be in front of you ... It cause an undue dazzle. Dangerous and illegal.

The power should be enough for ride without any more light, but the form of the light it is circular. Bad.


The LED throws direct light into the eye, making it annoying to ride.


The light color is very cold, it looks a little purple, that is a low quality for human eyes and reduce the vision.


The fixing system is poor and the center of gravity is located in front of the handlebar so that the light tries to lower each time, it's unsafety off-road.
Good Power, Rechargable USB,
Poor fixing system, purple light, dazzle...
Response of the brand
Dear Sir,
Thank you for taking the time to give us such a detailed review of this bike light.
I will feed all your comments back to the product manager at Decathlon in particular linked to the fixing bracket.
Regarding the StVZO norms, these are applicable in Germany and not in the UK. Fot this reason, this light is not sold in Germany.
This light is indeed powerful but none more so that many other models available in all other UK retailers.
This is an interesting and sensibly written article on the British Cycling website which may help other consumers as well: https://www.britishcycling.org.uk/knowledge/bike-kit/article/izn20130902-Buying-bike-lights-0
Regards,
Peter Lazarus UK Cycling Market Manager DECATHLON
Carlos found this answer helpful
Decent battery life, good brightness
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Used for 2 to 8 weeks
Took it on the Dunwich Dynamo and it lasted until dawn on a full charge,

Only downside is the micro USB charging port is slightly awkward to open and insert the cable into.
Variable brightness
Charging port