Specification:                Product name:       BTU Mini TC4 Titanium Alloy CREE XP-L LED Flashlight           Brand:       BTU           Model:       Mini TC4           Emitter Brand       CREE           Emitter Type:       XP-L           Emitter BIN:       1A(coo white) \/ 5C (neutral white)           PCB Board:       16mm           Current:       10mA>600mA>1.2A> Hidden turbo 2.5A           Material:       TC4 Titanium Alloy           Driver:       Digital current regulation driver           Mode:       Turbo、High、Middle、Low           Lumens:       850LM、300LM、80LM、3.5LM           Runtime:       (Step down to previous mode after 180 seconds)、5h、19h、350h           Battery Configurations:       1x 18650 ( Unprotected)  (not included)           Switch Type:       clicky           Switch Location:       head of the flashlight           Waterproof:       IPX-6 waterproof           Color:       silver           Weight:       55 gram without battery           Size:       95mm x 25mm(length x body diameter)   UI:> Hold 0.5 second for on ; hold 0.5 second for off>Click once to change mode;>Double click to access Turbo mode   (Will step down to high mode after 180 seconds)Current: 10mA>600mA>1.2A> Hidden turbo 2.5A;  Current RegulationPackage included:1 x BTU Mini TC4 Titanium Alloy CREE XP-L LED Flashlight1 x  SS Clip1 x O rings1 x lens1 x Nice light filter1 x Gift Metal box