Fenix TK51 Spot & Flood Flashlight
4.5 out of 5 based on 212 user ratings

Fenix TK51 Spot & Flood Flashlight

by: Fenix


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For a spot and flood combo LED flashlight that brings high intensity lighting, the FENIX TK51 is a great choice. With both LEDs powered up the unit can shoot a beam of light that has been measured at 1800 lumens and individually you can have as much as 900 lumens for either the spot or flood beam. It is able to reach a throw distance of 425 meters and with a bank of three 18650 batteries, it is able to last for an hour and 45 minutes with both lights on at 1800 lumens and 3 hours and 30 minutes with either the flood or spot utilized.


Fenix TK51 (2 x XM-L2, 3 x 18650/6 x CR123A) flashlight review, by Selfbuilt


Fenix TK51 Individually Controlled Spot & Flood Flashlight


Fenix TK51 Specs

LED Brightness Level Waterproof Specifications (Width, Length, Diameter) Weight Battery
Cree XM-L2 U2 8 output levels IPX-8 188mm (Length)x48mm (Diameter) 430g 3x18650
Turbo High Mid Low
Output (lumens) 900 400 150 10
Runtime 3h30min 9h 27h 420h
Beam Distance 425m (max)
Peak Beam Intensity 45200cd (max)
Impact Resistant 1m
Water Proof IPX-8 (underwater 2 meters)
Turbo High Mid Low Strobe
Output (lumens) 1800 800 300 20 1800
Runtime 1h45min 4h30min 13h30min 210h /
Beam Distance 425m (Max)
Peak Beam Intensity 45200cd (Max)
Impact Resistant 1m
Water Proof IPX-8 (underwater 2 meters)


    • Utilizes two Cree XM-L 2 (U2) LEDs with a lifespan of 50,000 hours
    • Uses three 18650 rechargeable Li-ion batteries
    • Digitally regulated output with low-voltage indicator
    • Reverse polarity protection guards against improper battery installation
    • Three button interface for fast and convenient operation
    • Made of durable aircraft-grade aluminum
    • Premium Type III hard-anodized anti-abrasive finish
    • Toughened ultra-clear glass lens with anti-reflective coating
    • Length: 188mm
    • Diameter: 48mm
    • Weight: 430-gram, (excluding the battery)
    • User Manual
    • 1 x O ring
    • Lanyard
    • Carrying case
    • Warranty Form
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