Small But Big: Weighing just 60 grams, you´d be hard-pressed to find a headlight as useful and streamlined as the Dayblazer 550. Combining a focused beam for getting home after dark and plenty of eye-catching pulses to stay visible even during daylight hours, this light is small enough that you can forget you have it with you. The DB 550 comes with a handlebar mount that easily adapts to all handlebar sizes between 22.2 and 34 mm. This light has an OSRAM 3737 LED, it is waterproof, USB rechargeable. There are 5 operating modes in total, three with constant light (550, 275, 75 lumens) and 2 with pulsed light (100 and 65 lumens). The low consumption constant light mode, 75 lumens, allows it to work for up to a maximum of 5 hours. The low consumption pulsed light mode, 65 lumens, allows it to work for up to a maximum of 12 consecutive hours. With this light they will definitely see you coming.