Bulb:COB + SMD

Battery:3.7V,1200mAh polymer battery 

Function:

Normal button(middle button):high-low-flash-red on-red flash-off. Memory function for the light.Long press for 3 seconds in any mode,turn off the light.

Backpack button(right button):white SMD ON-red SMD ON-white and red flash alternately-OFF.Memory function for the light.Long press for 3 seconds in any mode,turn off the backpack.

Sensor button(left button):just COB white light has sensor function.

Brightness:COB:250lm

Runtime:3.0hrs in high mode

Charging time:2.5hrs

Input:Input:5V,1A

Material:ABS+rubber

Size:head:23*1*3.3cm;backpack:9.3*2.3*4.2cm                                                                    

Weight:104g 

IP class:IP44  

30cm USB cable(type-C)            

Features:flexiable head,wide beam range,focus function,sensor function.