It features built in cooling fins and cutouts for side visibility. Its single LED design provides up to an impressive 500 lumens of output and eight output modes—including a Daytime Flash mode. Runtime has increased by 2.5 hours for up to 20 hours. Charging is simple with an integrated cable-free USB stick. It’s available in five colors (Black, Silver, Red, Blue, Purple) and securely straps to a variety of handle bar shapes and sizes.