Canway Bicycle Rear Light Red/Blue, Bike Tail Light Rechargeable 168 Lumens Bike Tail Light Battery USB C 500mah 5 Modes Waterproof Safety for Road Mountain Night Riding

Super bright and works amazingly and battery is great

Extremely bright light and easy install.

A must for low light cycling. Can be mounted on the bike or helmet and highly visible especially in the alternating flashing red and blue light mode. Long lasting battery life> 4 hours.

I've been equipping all my bikes with these lights, and they're a game-changer for safety on the road. The alternating red and blue blink pattern is incredibly effective—it really catches drivers' eyes in traffic, giving me that extra peace of mind to dodge close calls and avoid mishaps. Plus, the battery life is outstanding; I can tackle 3+ hour rides without a hitch and still have juice left for days of commuting. Highly recommend for any cyclist prioritizing visibility and reliability!

It’s a great product that works exactly as described. The light is definitely bright enough for me and there’s a lot of lighting modes to choose from. The thing is, I sort of bought it for the blue/red functionality because I thought it would accomplish a good deterrent effect for drunk / bad drivers hitting me or getting too close. I sat down to look at the regulations regarding use of blue lights on a bicycle and, as it turns out, it’s most likely just as illegal as having it on your car.. oh well. It still functions great and I can use the red-only modes. 4 stars because it’s does everything it needs to do, but they are selling something that has an illegal functionality in almost all US states. Someone could get into trouble because they assumed that it was legal to use it in the way that the product listing would imply.

The rear bike light works wonders in the dark and helps to alert drivers of your presence without being obnoxious. It easily attaches/detaches from the bike whenever you want it to. It's not so loose that it would fall off while riding. Downside is using the solid light colors only lasts for ~2hrs before needing to charge. The flashing variant lasts like ~3-4 hrs.

Really good bright light, I use it for my motorcycle but can be used on bicycle ! I recommend it

I have this mounted to the front of my bike to shine blue. And compared to other lights I have on my bike. This one definitely shines brighter and The battery is able to hold a good charge