Powerful Cree XPG2 R5 LED 
Battery power status indicator
4 Modes: 10%, 40%, 70%, 100%
Smooth Aluminum Reflector
Water Resistant
Lightweight alloy body
Helmet mount included
Rechargeable lithium 4.2V - 4400mAh battery pack 
Runtime: 10%-25hrs, 40%-10hrs 70%-4.5hrs, 100%-2.5hrs 
USB charging cable included
Charging time: 6-8hrs