Take to the trail with the confidence that you are equipped with the strongest rear light. With 3 focused LEDs, 270 degrees of visibility, and a 125 lumen flash daytime running mode, the Dayblazer covers all your riding needs. Thanks to the slim profile of the light and the unique mounting bracket, the Dayblazer 125 rear light can be attached to almost anything you can think of, from round or aerodynamic seat posts to seat stays, a rack, or your backpack. Runtime steady: high 1.6 hours (120 lumens), low 3 hours (50 lumens). Runtime flash/strobe: 3 hours (125 lumens)/6 hours (65 lumens).