the most poweful Fenix flashlight- TK75

With the Fenix TK75, four 18650 rechargeable cells are stunningly transformed into 2600- lumen max output. Throwing 606m with an 80-degree plus beam angle lets the TK75 light up extended terrain.
On high at 1100 lumens, this compact Fenix flashlight pushes for four hours while the 400-lumen level stays the course at 12 hours runtime. ?The stainless crown, strobe and SOS functionality as well as the on-body dual switch system make the TK75 a trustworthy carry on search, caving and scouting missions. Mounted on a vehicle or stowed for emergency use, this light captures the proven performance found in every Fenix lighting product.

◎Uses Cree XM-L(U2) LED with a lifespan of 50000 hours
◎Uses four18650 rechargeable Li-ion batteries
◎ 185mm (Length) x 52.5mm (Diameter) x 87.5mm (Head)
◎ 510-gram weight (excluding batteries)
◎ Digitally regulated output - maintains constant brightness
◎Low-voltage warning function to alert users to replace the batteries
◎ Reverse polarity protection guards against improper battery installation
◎ Dual button switch system in the front for quick switching
◎ Made of durable aircraft-grade aluminum
◎ Premium Type III hard-anodized anti-abrasive finish
◎ Toughened ultra-clear glass lens with anti-reflective coating

Operation Instruction

Two buttons control the TK75’s operation. The right side button with a power source mark is for ON/OFF. The left side button with a recycling mark controls MODES & BRIGHTNESS LEVELS.
A single press on the power switch turns the TK75 on or off.
With the flashlight on, a single press on the mode switch switches the light between the Turbo→Low→Mid→High→brightness levels;
To enter into the strobe mode, press and hold the side mode switch for about one second. It will flash between 6Hz and 15Hz every two seconds.
To enter into SOS mode, press and hold the side mode switch for about three seconds.
While in strobe or SOS mode, a single press on the side mode switch returns the TK75 to non-flashing mode where brightness can be adjusted.
Whether it is on or off, the light will enter into strobe or SOS mode if the mode switch is pressed and held.
With advanced circuitry, the TK75 will remember the last-used brightness level (not flashing modes) the next time it is turned on.