Fenix TK21 Flashlight Review

The Fenix TK21 flashlight comes in a nice carry case, with some spare accessories like an extra o-ring. The cost is around $90 to $100. It can be closely compared to the Surefire P2x for about two thirds the price. It uses two CR123 batteries. The low switch is five lumens which runs for two hundred plus hours. There is a medium mode at about 58 lumens which runs for about sixteen hours and a high switch at 189 lumens rated at about five hours. There is a turbo mode which runs at 468 lumens for just under two hours. The Fury also has a strobe mode used for self defense. The unit switched on with the on/off tail cap and the different modes are activated by the side switch. the unit always starts in low and you can switch it to brighter modes sequentially from the lowest setting to turbo.

  • 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
Operating Modes:
  • Low: 5 Lumens constant (220-hour battery life)
  • Mid: 58 Lumens constant (16-hour battery life)
  • High: 180 Lumens constant (5-hour, 10-minute battery life)
  • Turbo: 468 Lumens constant (1-hour, 50-minute battery life)
  • Cree XM-L (U2) LED with a lifespan of 50,000 hours
  • Uses two 3V CR123A batteries (Lithium) or one 18650 rechargeable battery (Li-ion)
  • Dimensions: 6 inches long by 1 inch in diameter; 1.7-inch head diameter
  • Weight (excluding batteries): 152.6 grams

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