Bulb: CREE XPG + 5 PCS SMD

Battery: 3.7V 1500mAh Li-ion

Function:CREE XPG ON – SMD ON – OFF

Max output: 130 Lumens (XPG) ; 170 Lumens (SMD)

Run time: 5.5 hours (XPG) ; 4 hours (SMD)

Beam distance: 15 meters ( XPG) ; 4 meters (SMD)

Rechagrer : 5V 1A (USB port)

Waterproof Grade: IPX4

Size: 54.5 x 49.5 x 58.6 MM

N.W.: 121 g

There is a red light in the battery 

holder, so it will have a warning function.