The NiteRider Lumina 600 OLED Headlight mounts stealthily to your handlebar to light the way home. Featuring fast charging and a multifunctional digital display that communicates remaining battery time across the various lighting levels, this light takes the guesswork out of lighting time so you won't get stuck in the dark during your evening commute. Powered by a rechargeable Li Ion battery, this headlight boasts run times ranging from 1. 5 hours on the high, 600 lumen setting all the way up to a whopping 21 hours on the fast flash setting. The light has a total of three steady beam and four flashing options between those two bookends, so you can customize the brightness to meet your riding and run time needs on the fly. At a claimed weight of only 172g, the NiteRider Lumina 600 OLED Light is right at home on your helmet or handlebars without weighing you down or distracting you along the way. It comes complete with a handlebar mount, an internal Li Ion battery, and USB charging cable.