Fenix TK51 3 x 18650 / 6 x CR123A Dual CREE XM-L2 U2 1800 Lumen LED Flashlight Lock Back  It offers two levels

  It offers two levels of brightness which allows the user to select the best compromise between brightness and runtime for any given task

SPECIAL SIGNALS (STROBE): Yes

Acrylic scale

LED option 3: LUMINUS SST-20 CRI≥95

Fenix TK51 3 x 18650 / 6 x CR123A Dual CREE XM-L2 U2 1800 Lumen LED Flashlight Lock Back  It offers two levelsDescription The Fenix TK51 Flashlight employs dual LEDs to increase total output with 16 wide ranging lighting options. Spot and flood beams include 1800 lumen max output and 425 meter carry distance. For total control, one button instant turbo and strobe activate even when the TK51 is off. See images for output modes. Features Utilizes two Cree XM L 2 (U2) LEDs with a lifespan of 50,000 hours Uses three 18650 rechargeable Li ion batteries 188mm