The Nitecore 3,100-Lumen EDC27 UHi Ultra Slim Flat EDC Flashlight is an update to the beloved EDC27, a flat-shaped slim flashlight that is easy to carry in a pocket, backpack, and everywhere else. Now featuring the innovative NiteLab UHi 20 LED, the EDC27 UHi delivers a powerful 3,100 lumen output and an impressive throw of 333 yd. In addition to increased brightness and throw, the EDC27 UHi boasts new updates to its switches, runtimes, and more. The EDC27 UHi features an updated Sensor Protection function that activates when the light is accidentally turned on in High, Turbo, or Strobe modes, automatically reducing the brightness to prevent overheating. It weighs just 4.3 oz. and measures 5.33 in. long.