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G Keni Smart Bike Tail Light, Brake Sensing Rear Lights, Auto On/Off, Waterproof, USB Rechargeable, Ultra Bright LED Warning Back Bicycle Flashlight, Cycling Safety Accessories

  • Based on 2,181 reviews
Condition: New
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$24.99 Why this price?
Holiday Deal · 17% off was $29.99

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Monday, Dec 23
Order within 15 hours and 53 minutes
Available payment plans shown during checkout

Style: 1 Pack (Aluminum Alloy Shell)


Features

  • [ SMART BRAKE SENSING & EASY to INSTALL ] - Automatically switch to high light mode when braking, ultra-bright for 5 secs lights warning back rider to enhance your safety. You can mount it under the saddle with metal mounting bracket or mount to the seat post with adjustable silicone strap.
  • [ FOUR LIGHT MODES & HIGH LUMEN LED ] - There are 4 light modes for your choice, (1)Normal Flash Mode, (2)Breathing Flash Mode, (3)Fast Flash Mode, (4)Steady On Mode, enjoy your cycling as you wish, High lumen COB Led bike taillight makes you more visible, it's a perfect bike light for night riding.
  • [ AUTO ON/OFF for BATTERY SAVING ] - This Smart bike tail light including Motion Sensor and Light Sensor, it will be auto off when detect in no motion after 30 secs. Once touch it or detect the bike is moving, the light will auto on again. Also when you ride under the sunlight, the tailight will be auto off due to the light sensor is working, IF YOU LIKE TO RIDE IN THE DAYTIME AND NEED THE TAILLIGHT KEEP WORKING ALL THE TIME, please choose the mode 3 and mode 4 to avoid Light Sensor working.
  • [ BRIGHTNESS ADJUSTABLE & HIGH LUMEN ] - The brightness of this bike rear light is adjustable, Max to 120 Lumen,1000m Viewable, in the steady on mode, just long press the button to adjust the brightness that you need, it Built-in 400mAh Li-ion battery, it can lasting 50 hours (will be influenced by the brightness that you setting) runing time when fully charged. four blue indicator lights, each shows 25% capacity, No longer worry about forget to charge.
  • [ ALUMINUM ALLOY SHELL & IPX6 WATERPROOF ] - Made of aluminum alloy shell, this bike rear light has a nice touch and awesome appearance. It's waterproof/dustproof and shockproof, suitable for any harsh working environment. we guarantee a 12-month warranty, 30-day money back and 24/7 customer service to make it no risk for you to purchase this taillight.

Color: Red


Brand: G Keni


Material: Aluminum


Power Source: Battery Powered


Water Resistance Level: Waterproof


Item Weight: 3 Ounces


Mounting Type: Seat Mount


Product Dimensions: 1.57"L x 1.34"W x 1.34"H


Number of settings: 4


Brightness: 120 lumen


Color: ‎Red


Brand: ‎G Keni


Material: ‎Aluminum


Power Source: ‎Battery Powered


Water Resistance Level: ‎Waterproof


Item Weight: ‎3 Ounces


Mounting Type: ‎Seat Mount


Product Dimensions: ‎1.57"L x 1.34"W x 1.34"H


Number of settings: ‎4


Brightness: ‎120 lumen


Auto Part Position: ‎Rear


International Protection Rating: ‎IPX6


Manufacturer: ‎K&K International Co.,LTD


UPC: ‎730964003983


Item Package Dimensions L x W x H: ‎4.69 x 3.19 x 1.54 inches


Package Weight: ‎0.13 Kilograms


Item Dimensions LxWxH: ‎1.34 x 1.34 x 1.57 inches


Brand Name: ‎G Keni


Warranty Description: ‎1 Year


Model Name: ‎Q5


Suggested Users: ‎mens


Part Number: ‎Q5


Style: ‎1 Pack (Aluminum Alloy Shell)


Size: ‎1 Pack


Date First Available: August 8, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Compact, bright, and solid.
Style: 1 Pack (Aluminum Alloy Shell)
Bike lights don't last forever so I picked this one after a little research. I think this light was a good choice after a couple weeks of use. I bike commute and for price versus quality this has been my favorite tail light for a few reasons. It is compact, bright, waterproof, & the battery lasts. It mounts well to my bike saddle and the light itself screws into the the mount apposed to clipping in like the tail lights I've had in the past wich could slip out. This tail light won't slip out of the mount and the motion detection works well and it lights up when you slow down simular to a car brake wich i think is cool. I like this light and am glad a brought it. ... show more
Reviewed in the United States on December 3, 2024 by Clovis

  • Can I give it 6 stars?!
Style: 1 Pack (Aluminum Alloy Shell)
So, I love this light for some very specific reasons: 1) the build quality seems very good - aluminum body and bracket; 2) big enough to give out enough lumens and multi-mode lighting; 3) rechargeable battery; 4) most importantly - which is why I bought it - I wanted something that I could semi-permanently screw/mount to my bike rack so I didn't have to worry about losing it, having to take it on/off and it would be there whenever I needed it. I was about to purchase the Blue Lug KOMA from another online retailer (I had waited 3 months for it to come back in stock) but it is smaller, less bright, less lighting modes and a lot more money - $50 with shipping! After looking around I found this light and thought - hoped - that I could retro fit it to bolt to my rack and it worked great. I had to remove the mounting braket with two tiny screws....BUT that wasn't easy - they are small, easy to strip, and they were probably lock-tited on there....but I got them out and the bracket off. If I hadn't been able to get them out, I would have just had to use it like any other strap-mounted light - which would have been fine, but not why I chose this particular light. Then all I had to do was to drill a small hole through the aluminum mounting base, and attach it to the rack - which is why I bought this light - the METAL base - so I could drill through it and not deal with any plastic crap mounted light. Did it void any warranty? Probably yup. Do I care? Nope - it is mounted exactly where I want and how I needed it, at a fraction of the cost of the KOMA. I will probably buy one or two more to put on my other bikes. I can't speak to the long-term durability, battery life or anything else (other people have already reviewed that), but for the price and my specific needs, this is a 6-star buy. See the photos for details.... ... show more
Reviewed in the United States on November 4, 2024 by Portho Portho

  • Very nice light
Style: 1 Pack (Aluminum Alloy Shell)
The light mounted under the seat, easily, and functions as described. Be sure to use the 3rd or 4th light ingoptions, if you're riding in bright daylight and want the light to remain on. By design, the light sensor will turn it off, if its on the 1st or 2nd lighting options. This is clearly documented within their product instructions. ... show more
Reviewed in the United States on October 8, 2024 by Peter D.

  • Very bright long lasting
Style: 1 Pack (Aluminum Alloy Shell)
Liked that it was easy to install on the post and that the battery lasts a long time. Also liked the automatic on/off feature and the break sensing. Disliked that the manual, like most manuals for products made in China, was difficult to understand.
Reviewed in the United States on August 17, 2024 by Stephen Jones

  • Good lights
Style: 2 Pack (Team Frequency Blink)
I bought these lights for my road bikes, as a means to put a light on my saddle rails that could be seen over the top of my saddle bag and they work well for that. For times where I have a third bottle these come with a clip-on mount that is part of the strap assembly for mounting on the seatpost, which works well and securely for clipping onto the exterior spots of my saddlebags. Nice visibility to the various light sequences and love the braking warning for extra safety. Battery life is very good, I can get 3-4 30+ mph rides before a charge is needed. Hopefully they prove to be durable long-term. ... show more
Reviewed in the United States on October 20, 2024 by nhmtnbkr

  • The only taillight you should have
Style: 1 Pack (Aluminum Alloy Shell)
First, quality is just insane, very good, It comes with two straps, one metal and one rubber, It's a type c charger, very convenient, I can use any cable at home, it also comes with a USBC cable. Light, let me tell you about the technology built-in in this taillight, This light can differentiate between night and day. Which means it can save light if you're riding during the day and turn on automatically during the night. It has a built and sensor so when you break it illuminates like a breaking lights in a car. It turns off automatically after 30 seconds and as soon as you move it turns on again. Just incredible little light As for that durability, I haven't used it that much yet. I'll let you know later So far I'm really impressed. PS. This is not a paid review. I bought it with my money. ... show more
Reviewed in the United States on October 12, 2023 by Khaled Richard Khaled Richard

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