The TK40 is the latest installment in the TK-Series and is the first Fenix to use Cree's MC-E quad-die, very powerful LED. Powered by eight AA batteries and boasting 630 lumens of output, the TK-40 is the ultimate portable, long-range illumination tool for the backpacker, explorer, and flashlight lover.

The TK40 is the world's brightest, AA-powered flashlight. Its optimized reflector enables it to throw a wall of light for over 300 meters. All of this luminosity is sealed tight in a waterproof, durable, and strong aluminum body that measures in at just 208mm long.

The TK40 has two different modes of output, each with four different levels - a total of eight different outputs.

• Its primary modes are constant-on: Turbo (630 lumens), Low (13 lumens), Medium (93 lumens), and High (277 lumens).
• Its secondary modes are strobe/flash: Strobe, Slow Flash, SOS, and Fast Flash.

The TK40 also has intelligent circuitry that will memorize your last-used primary mode.

Features

• Cree MC-E LED with a 50,000 hour lifespan
• 2 Modes, 8 Total Outputs
  • Primary Modes (in order)
    • Turbo - 630 Lumens, 2 Hour
    • Low - 13 Lumens, 150 Hours
    • Medium - 93 Lumens, 20 Hours
    • High - 277 Lumens, 6.8 Hours
  • Strobe Modes (in order)
    • Strobe
    • Slow Flash
    • SOS
    • Fast Flash
• Digitally regulated for constant output
• Powered by eight 1.5V AA batteries
• Alkaline, Ni-MH compatible. Do not use Energizer Lithium AA cells for this light.
• Can operate off just four AA during an emergency
• Dimensions - 208mm (L) x 39.4mm (D)
• Weight - 284g (excluding batteries)
• Crafted from T6 aircraft-grade aluminum
• Type-III hard-anodized finish
• Waterproof to IPX-8 standard
• Toughened ultra-clear glass lens with anti-reflective coating
• Push-button tailcap switch
• Stands on end to operate as a candle

Included accessories: shoulder strap, two spare o-rings, and a rubber switch boot.

Battery Caution: Please double-check the orientation of your eight AA batteries before inserting them into the battery holder. Make sure that all eight AA batteries are properly oriented according to the instructions in the manual: the "negative" ( - ) side of the battery must be toward the small springs in the holder. Inserting the batteries improperly can cause the battery holder to become dangerously hot.