Adopting the latest American Cree XM-L LED, the Fenix TK21 is the first high intensity, compact outdoor flashlight to use XM LED with the side mode switch button. Fenix TK series flashlights feature a powerful, tough and waterproof to IPX-8 standard design, which is great for many extreme outdoor environments. Powered by two CR123A batteries or one 18650 rechargeable battery (Li-ion), this light features multiple brightness levels and is a perfect combination of extremely high intensity and ultra-long runtime. The TK21 is your reliable partner for all of your outdoor adventures.
Lifespan = 50,000 hrs
Types of Lighting Output: 4 general, 1 flashing
- Low: 5 Lumens constant (220 hrs)
- Mid: 58 Lumens constant (16 hrs)
- High: 180 Lumens constant (5hrs 10min)
- Turbo: 468 Lumens constant (1hr 50min)
- Strobe: 468 Lumens constant
Digitally regulated output - maintains constant brightness
Reverse polarity protection, to protect from improper battery installation
Push button switch with momentary-on function
Made of durable aircraft-grade aluminum
Premium Type III hard-anodized anti-abrasive finish
Toughened ultra-clear glass lens with anti-reflective coating
Light turning on/off
Depress the tail button switch lightly to activate the light momentarily. Depress the tail button switch completely to turn on the light and lock it. Another complete depress can turn it off.
A single depress on the side button switch to select the brightness levels in the order of Turbo -> Low -> Mid -> High. Depress and hold the side button switch to enter into the strobe mode, and vice versa.
The light can memorize any brightness level when switched off except the strobe mode.
* Notice: The above-mentioned parameters (tested by 2500mAh Ni-MH battery in Lab) are approximate and may vary between flashlights, batteries, and environments.