Cygolite Expilion 850 USB Bicycle Headlight with Cygolite Hotshot 2-Watt USB Rechargeable Tail Light and 24 Oz. Water Bottle & Keychain TV Remote/Flashlight Bundle Class leading 850 lumen output Cree XM-L2 LED Enhanced Cycling Optics (ECO) widens your field of vision and increases your visual profile Water resistant design for all riding conditions 1:15 ~ 9 hr run time