TR150/TR250 Bike Tail Light, 280° Visible Bike Rear Light | Brake Detection, Auto On Off Feature, 3 Mounting Options

I haven't received any feedback yet from my cycling buddies as to whether the "brake detection" or "auto off" features work, but the light is easy to use, charges quickly, has several flashing modes, is very bright, and attaches very securely to my seat pack (which is important, since I've lost several other rear lights which fell off during a ride). Highly recommend, and IF the brake detection and auto-off features work as advertised, then I'll be even happier with my choice!

One of the best back lights for a bike. It’s very bright and lasts 2-4 hours depending which setting you have it on. It’s worth the price. It’s water proof as well.

Exactly what I wanted. Bright.

Great buy. Has worked well and like to different light patterns to choose from.

Great bike tail light. The light is bright and stays charged for several bike rides.

Good rear light with multiple selections for lighting sequences/modes. Came with 3 mounting options, with easy twist on light unit. Light unit has a cross shaped connection that matches the mounting connection at 90 degrees then you insert and twist to secure light. That would all ways mount light in vertical position, being on the longer side. What did not work for me is the under saddle mount since I always have a bag mounted. I also could not mount it on my seat post due to the strap being too short, since I have a Richie carbon post that has a slight aero shape. So it will not work for seat post that are not a typical round. I managed to find a spot on the rear wheel triangle tube on the non drive side. Not what I had preferred but need a second light for night rides. I have it on full time mode with my other light on as a flashing mode. Satisfied with light brightness and modes but not the strap length. I also don’t use the clip since helmet doesn’t have a good mounting position and have lost one when I mounted it on my seat bag. Consider the mounting and brightness before purchasing. I would have purchased a brighter light if it would be my only rear light source.

Good brightness and easy to mount and use. I'm happy with it so far. Lets see how long it lasts

I have an ordinary Raleigh bicycle. The light holders are too short to fit in the saddle. The strap is too short and not flexible enough to fit around the saddle post. Fortunately, I found an old strap from a discarded tail light that I was able to fit with the new light. Otherwise, I would have had to return the light. Disappointing.

Purchased a little over a year ago. Light has been great. On highest setting with frequent full lumen flash sequence (shown in video), you can expect around 6-7 hrs of ride time I found and nearly triple that at lower settings. All depends on the environment you are riding and needs for visibility. I usually charge it up every 3 rides of 2-4hrs each to make sure it’s up for it. The wide range of visibility is its greatest feature, with excellent seat rail mounting. I did have an issue with my light recently, but seller was great in sending a replacement quickly at no cost. Well constructed with USB-C charging. Solid purchase at the price point.

Bright light, battery lasts a long time, no issues in pouring rain

Nice bright light. Good price and easy to mount with the band. I broke the underneath mount, but the band works so well that I wasn't bothered. Very pleased with the product.

I am very happy with this light, it goes out with me on every trip (even in daytime, because I don't trust the observance powers of motorists in the least, and every little bit helps), and is very functional. Good brightness, and a good variety of modes that are variably loud in alerting others to your existence. It has a few mounting options that all work great (previously it was on my seat post, then I got a saddlebag, and now it mounts just as easily and securely to that). 4 stars instead of 5 partly because it's hard to tell when the battery is low (an almost imperceptibly dim indicator light that only flashes at <10%), and mainly because of the "brake detection", which is coherent nonsense in its performance, and also confuses the mode selection. You enable the mode by holding down the device's single button for 3 seconds, but you also turn on/off the device by holding down the same button -- just for less time (the manual says 0.5 seconds, but in practice it feels more like 2 seconds). I've enabled the mode by mistake, and because it behaves so unintuitively, it can be hard to realize what's gone wrong. I've had to discipline myself to release the button as quickly as possible when toggling power. Also I don't think the idea of a light that gets brighter when braking makes any sense on a bicycle, even if it worked perfectly. I'll admit it sold me on picking this light over other options, but I didn't think it through. Are you randomly hammering the brakes in front of other cyclists who benefit from a brake warning? (I think not, any braking should be for obvious reasons, that the cyclists behind you will anticipate *before* they see your light brighten, or realize what that means). Are cars trailing behind you going to react to your braking? (Unlikely, the cars are going faster than you and plotting a path around *regardless*). As a concept it just doesn't make sense, bikes don't decelerate in traffic the same way cars do.

Very bright I just installed it on my saddle bars I’ll come back with a full review once I ride it. Not sure how it will be able to tell if it knows when I’m braking that’s why I bought these the most. But first impressions very good