Nitecore Tiny Monster TM10K Compact size, high-tech features, sleek modern styling, and powerful output—the Nitecore TM10K Rechargeable LED Flashlight checks all the boxes for form and performance. Powered by a built-in 4800mAh 21700 battery, the TM10K runs six Cree XHP35 HD LEDs and is engineered to dissipate their heat via a 4mm copper printed circuit board and a die-cast unibody cooling tube. The light is operated by side push-button switches for power and mode and a tail switch for instant access to the turbo. The high power setting can be customized at anywhere from 400 to 2000 lumens in 100-lumen increments. An OLED display shows battery voltage, remaining runtime, light temperature, and turbo duration (the 10,000-lumen turbo mode is meant for burst-style use and limited to 7 seconds' runtime.) There are two lockout modes: full, for when you're tossing the light in a backpack and don't want it to activate accidentally; and half, which leaves the tail turbo switch operational for pocket or holster transport when the light might be needed quickly. A blinking blue indicator beacon on the tail helps you find the light in the dark. The TM10K measures 4.3 x 1.6 x 1.2" and weighs 8.7 ounces. Light Performance Ultra-low: 3 lumens Low: 100 lumens Medium: 300 lumens High: 1000 lumens (customizable-400 to 2000 lumens) Turbo: 10,000 lumens (limit 7 seconds) Six Cree XHP35 HD LEDs Precision Digital Optics Technology Switching Dual power and mode push-button side switches Tail switch for instant access to turbo Construction Details OLED display shows lumens, voltage, runtime, temperature, battery power Unibody cooling tube and 4mm copper circuit board for heat management Advanced Temperature Regulation circuitry Built-in 4800mAh 21700 battery with the intelligent charging circuit Full and partial lockout modes Blinking blue location beacon on tail cap Pocket clip Type III hard-anodized aluminium housing IP68-rated water-resistant, submersible to 6.6' Impact-resistant to 3.3' Measures 4.3 x 1.6 x 1.2", weighs 8.7 ounces