Light source      :USA imported CREE XPE LED
Brightness         :300lumens
Power               :3w
Material            :6061-T6 aviation aluminum
Size                  :150mm,35mm,30mm
Net weight       :  154g                                                                                                         

Power source   :1*18650 rechargeable Li-ion battery
Runtime           :2-5 hours
Distance           :100-200meters
Waterproof       :Ip67
Modes               :5modes (High>Middle>Low>Strobe>SOS)