ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories

This is a great light. The construction is very solid, it's nice and bright, has several different flash modes, and turns off when it's not needed so the battery lasts a decent amount of time for its size. I'm using the under seat mount on a road bike and you barely notice that it's there, which means it doesn't get stolen. My only (minor) gripe is that the motion sensor is a little too sensitive. I chain my bike to a tree sometimes, and a light breeze is enough to turn it on sometimes.

I purchased this taillight to augment the anemic flasher on my Garmin Varia Radar. The RockBros light is a great value and an excellent rear light. A full charge seems to last forever and the brake light function is appreciated by riding partners. The light is very bright and easily visible even on a sunny day. The light came with two mounts, a strap for the seat post or a clamp on mount for the seat rails. The light screws into either of them just like a bottle cap. The charging port is accessed when you unscrew the light from the mount. The strap mount works fine, but as a rule I just don't trust straps. I used the clamp mount, which installed easily and holds the light in place on the rails. The clamp was a slight bit loose on my rails, but a small bit of tape under the clamp fixed the issue. I've used the light for about 1500 miles on gravel and trails with no issues. Taillights are a simple bit of kit, but I really appreciate the added visibility, both day and night. Hard to beat the value and function with this light.

I'm somewhere between dumb and liking to take risks so I rode for awhile without a front or rear. In an attempt to cherish my life I finally replaced my stolen one. This light is fantastic. The behavior is super easy to figure out, the c-type makes it hella convenient to charge, same aluminum design as the larger one but just cuter. Smaller battery but who cares? It auto shuts off no problem and if you're like me and remove it during the day a long press will keep it from accidently turning on. Can't be beat. Plus I adjusted the mounting today and it fits just snug as a bug. They should make this exact light for the front. SAME EXACT THING. Just in white, yeah this is awesome and I don't regret buying it. Comes with a second mount too that just wraps around, glad its included but it makes it easy to steal. Would def buy again though (assuming this one doesn't vanish!) Woohoo life! I didn't say anything about brightness AI, stay outta of it lol. It's pretty bright, it's behind me though so lolol

Excellent tail light that is well made and water proof as the charge connection is protected by the outer shell that the unit screws into. Long lasting and with different modes of light you will be seen..

Excellent tail light! Super bright, automatically senses braking, and adds great visibility at night. Easy to mount, long battery life, and very reliable for safe rides.

Keeps a charge for quite some time. Motion sensor on/off and 'brake' light works quite well. Good energy conservation. Will leave 'on' when on bike, and it will go to sleep after period of no movement. Four (4) blue intermittent LEDs indicate power level. Dependable.

This little bike light is pretty cool! So many features on this. The light can be adjusted just to your needs. The coolest part about it is it senses when your sopping and lights up a bright brake light! You can adjust the brightness, different modes to your liking and has a fantastic battery life even for the longer rides! Mount is great, you can mount it just about anywhere on your bike! Fantastic product, very well made! Honestly this thing should cost way more for its quality.

I love this for the additional visibility it offers on late evening/night rides, especially since I usually ride with at least one of my kids on my bike with me. Typically, I keep this on flashing mode to help increase visibility and prolong battery life. I’d say this last me easily a few weeks of riding with my kids before having to recharge. It is even easy to move between my two bikes I typically ride since it included a more permanent mount to the saddle rails as well as a quick release that I have on my secondary bike. The light itself unscrews from a housing that is on each of the mounting options. I plan to buy another one for my kids’ bikes since it is an inexpensive but functional light.