The Fenix TK50 is a bit of a departure for Fenix, being a rather large light and taking D cell batteries instead of the AAA, AA, or CR123 lights so common in modern premium lights. The TK50 has a large reflector that gives it a very tight beam with excellent throw. It is definitely not a flood light, but more of a spot light made to illuminate only the target plus some spill.

• Uses Cree XP-G R5 LED with a lifespan of 50000 hours
• Uses two 1.5V D (Ni-MH, Alkaline) batteries
• 228mm (Length) x 39mm (Diameter) x 60mm(Head)
  
• 233-gram weight (excluding batteries)
• Digitally regulated output - maintains constant brightness
  
• Reverse polarity protection, to protect from improper battery installation
• Two side button switches, easy operation
  
• Made of durable aircraft-grade aluminum
  
• Premium Type III hard-anodized anti-abrasive finish
  
• Toughened ultra-clear glass lens with anti-reflective coating
  
• 7 Modes:
• 255 lumens - 2 h 45 m
• 120 lumens - 10 h
• 49 lumens - 63 h
• 4 lumens - 480 h
• Strobe - 255 lumens
• Warning flash - 70 lumens
• SOS - 70 lumens
  
• Notice: The above-mentioned parameters (tested in lab using quality D alkaline primary batteries) are approximate and may vary between flashlights, batteries, and environments.