Olight HS2 400 lumen USB rechargeable LED headlamp

115g, 400 Lumens: The HS2 is designed for running and hiking. It has two LEDs – one for close range and one for further range. It has four output levels, battery level indication and a unique audible beep to let you know when the battery is getting low. The battery connection is USB so you can also power the light from a powerbank giving more lighting options.