What Our Gearhead(R) Experts Are Saying:"The TR150 is one of my go-to lights for daily rides. It's compact, super bright, and the brake detection is spot-on-it really gets drivers' attention when you slow down. I also like that it automatically turns on when I start pedaling and shuts off when I stop, so I never have to think about it."Compact, powerful, and built for real-world riding, the Ravemen TR150 Taillight ensures you're seen in every condition. Four high-efficiency red LEDs deliver up to 150 lumens of output, creating visibility from over a kilometer away, while a wide 280deg beam ensures side visibility for total coverage. With built-in brake detection and smart auto on/off, the TR150 responds to your movement-brightening instantly when you slow and conserving power when you're stopped. It features six lighting modes for versatile use and multiple mounting options for bikes, saddles, and backpacks. Durable, USB-C rechargeable, and IPX6 water-resistant, the TR150 is designed to keep you visible day or night, rain or shine.