Stay Safe While Cycling With G Keni Smart Bike Tail Light - Auto On/Off, Waterproof, USB Rechargeable, And Ultra Bright LED Warning Back Bicycle Flashlight! Review

The unit will go into a sleep mode when you stop. This is excellent for battery life at rest stops. I haven't been able to check the brake light function as I tend to ride alone but it does start up on moving after a stop. Small unit, made of good aluminum and has multiple flashing modes. Compact and several mounting options. Rear of seat bag, seat post, rear of carrier bags and even the rear of the carrier for me. Working well after well over 100 miles on the road. Feels like it will last a…

This light has four modes. if you use Flash or Breathe (pulse) the light will auto off in 30 seconds.If you use strobe or always on, the light does not auto off in 30 seconds, it just stays on.I prefer to leave the light on all the time, so it will not auto off if I'm not moving.The auto off feature is awesome, if the light stops moving for 30 seconds it turns off.Any movement turns it right back on instantly. I kind of like it, just turn it on and forget about it.The brake light is the feature

I bought this to comply with local ordinances that say I need a reflector or light on the rear of my bike. The seat rails are a great spot for a rear light. It's as high as I can get it without a sissy bar, and I can use my dropper post without crushing it.I read the reviews, and I don't plan on even trying the automatic or strobe features. Four clicks of the center button, it's on. One more click, it's off.$20 is a lot for an on/off light with other features that don't work, but I didn't see…

Great size, feels well built, very bright and 4 light modes. Break sensor is pretty good testing by hand or on scooters in the garage. Looking forward to trying on my electric skateboard next month. Says to mount vertically but it worked well on my son’s tricycle horizontally. Instructions that come with the light could be clearer. Questions section answers them but here’s the details in one spot:Motion Sensor = Brake light (all modes)Light sensor = Auto On/Off (mode 1&2):Modes:1: Normal…

I was looking for a seat mounted tail light to use with my mountain bike. Most tail lights just strap to the seat post and don't work well with dropper posts. Install was a little fiddly but since install it has been solid and stays put. I've got about 130 miles of mtb trails and about 100 miles of road/gravel with it installed and it hasn't moved or shifted. I mostly use the blinking feature on the road and I haven't had to charge it after the initial charge.Definitely recommend if you have a…

I like the brake function to alert my MTB buddies see me hitting the brakes. But daytime visibility. the flashing LEDs are not that bright. (Compared to my 100 lumen Gygolite which you cannot look directly at without experiencing eye pain)I like the quality and strength of mounting to the seat rail (made of aluminum instead of plastic). BUT the light has to spin onto the thread of the seat rail mount and that takes a bit of time. But it's inexpensive and the accelerometer works fairly well when

I purchased three for three different bikes. after noticing they can't be installed in one of the bikes, I figured i'd install two on the same bike. Since it turns on automatically when it detects movements, i figured both would blink in sync.Not so. All three start in sync, but no two keep the same beat. eventually it looks like they're sequential (and it seems like a turn signal), then random, then back to sync. Not what it was designed for, i guess, and it works rather well as a single light

This is a nice bright light, easily visible from a distance in daylight over a reasonable range of angles from the rear. The mount is very good. It is solid and secure and about as high on the bike as anything can be. It is well constructed, with an aluminum body and aluminum screw-in receptacle on the mount. The button is firm with distinct tactile feedback that you have pressed it. The battery strength indicator lights are very small but visible. There are four modes, only two of which I use.

First off I love the function of this brake light. I just wish there were better mounting options. Granted it comes with a clamp for mounting under your seat and a band for mounting to you seat post. In general this would be good. However, I have large hands and this has tiny pieces. It took me 1/2 hours to get it mounted under my wife's seat, dropping the parts many times. My seat has a bar for mounting a saddle bag and therefore I could not install the light there but was able to use the seat

Apr 14, 2022:I like the build quality (metal) of the light. I charged it for about an hour before putting it on the bike.The main body of the light is threaded and screws into the socket of your choice. It has an o-ring which should keep water from getting to the USB connection inside while it is in its socket.I installed the seat-mount bracket in about 5 minutes. An allen wrench is included. When attaching the bracket under the seat, I didn't remove the bracket arms. I only loosened the…

I was very excited about this product and it worked well the first 7 weeks. It did the job informing drivers behind me of my intention to turn. However it just died abruptly. Return period had ended. No go. expected the product to last a year or more at least then I would have been happy. Seemed to be a quality product but just quit for no apparent reason. Was not abused. Was not left in the weather. No reason I can think of that it just quit.I cannot recommend this product. Not reliable. Will…

I like the light. I like the ambient light sensor and the extra time it gives me between charges. I like the inertial stop light. It is bright enough and has enough choices to find a light pattern that works. The power switch is an absolute piece of junk. If you have large fingers with blunt tips, forget about pushing them into the recess the switch resides in as they won't fit. When you find something that will fit and is not sharp enough to damage the switch cover, good luck finding the magic

Initially thought this would clamp to my XP lite seat rails but would not work due to seat design. Could not use the rubber seat post mount due to my saddle bag. Only 3 zip ties later and my problem was solved! Just finished charging the light and have only turned it on inside. Seems bright and well made.Used it a few days now and it is plenty bright at night.

Seems well built, aluminum casing. There are two different type of mounts. It’s USB-C which is convenient. The light senses when you stop or slow down and goes very bright. Will see about the long term. Also has little blue lights to indicate battery charge. Instructions are fair. Good light for your bike.

Super easy to install, reposition and get pointing in the right direction. LOVE this light for my son's bicycle. May not be very intuitive to use.

Great little light that is bright and easy to mount. All features have great battery life and I love the braking and auto off features. Since I am not buying this for a bicycle, but for the wheelchair used by a 90 year old relative, the one touch turn on is very literally a life saver.Charge seems to hold well. My only complaint is a little unfair: since this attaches to a wheelchair the interface is easy enough for a 90 year old with somewhat diminished capacity, but having to remove the light

I ride mostly on street bike pathways and like the extra visibility to cars. It is bright but not sure if the intensity goes up with braking, I just can’t check by myself. I would recommend this product.

I really thought this was going to be the perfect taillight. I should have read the product description more carefully. It's going back to revain.I wanted a light for my kid's bike that would turn on and off automatically when he begins and ends his ride to school, and would flash or pulse continuously under all conditions (day or night time) so that drivers can see him. He's a kid, and he forgets to turn the light on. I want to keep him safe.This light has a mode in which it can turn on and…

Purchased 2 a little more than a month ago. One fully charges with three blue light indicators. The second only charges to two blues lights and of course dies on a 2 hour ride when it is supposed to last and last. Of course we were 1 day late in trying to return. I emailed the company and did not or have not yet received a response. The idea on these are great, the battery life and quality control as well as response from company-- MEH! THINK TWICE BEFORE PURCHASING!will update as needed.

The auto stop feature works great. Very bright light. Very hard to see charging light even in dark room. Good product tho. Auto off feature is great too.