Cree XBD and high output surface mounted LEDs provide 65 lumen output with high, low, Courtesy� and Superflash� modes Run times from 7 (high - 30 lumens) to 11.5 (Superflash - 65 lumens) hours Provides 220? of visibility Highly visible, even in daylight Dust and water resistance rated to IP65 standard 550 mAh lithium polymer battery charges in 2.5 hours with micro USB cable (included) Smart Charging Technology� with built in low battery indicator Includes Quick Strap� seat post mount and horizontal clip mount for multiple mounting options 56 grams Black 4 Rear Seat post USB 65UPC/EAN/GTIN: 642016309601