These lights Mount with a built-in clip or use included rubber straps. My headlamp is strapped around the handlebars, taillight strapped around the rear post. Charge lasts pretty long, visibility seems good, 4 operating modes- kinda what I wanted. Shipped fast. I just rebuilt an old fixy with new rear wheel so it’s got coaster brake! I’m too old for that fixy/hipster scene. Anyway - low cost and good performance from Brooklyn Bicycle!
Mike