I’ve been using the Bontrager Flash R for over 2 years now. With its great visibility day or night, I definitely feel safer since cars see me earlier. I’ve had zero problems with the light even after using in all types of weather conditions. Many riders have stopped me and asked what type of light I’m using because they see how bright it is in daylight. Combine the brightness with the long-lasting battery life and this tail light is a winner in my book.