USB C Rechargeable 21700 LED Flashlight 6500K With Battery

TS21 delivers a maximum output of up to 3500 lumens with a maximum range of 217 meters. Its side switch controls all functions: power on/off, battery indicator, output level and change of mode groups. The sophisticated Andúril UI provides a both user friendly and highly flexible interaction as well as simple one-hand operation.

Specifications
Emitter: 3x SST20
Operating voltage: 2.8V – 4.2V
Battery options: 1x 21700
Dimension: 113.4mm (length) x28mm (head diameter)
Weight: 78 grams (without battery)
Flashlight body: Aerospace grade 6061 grade aluminum alloy, CNC manufactured to hard-anodized to military grade specification type III, anti-abrasive finish to get solid built body, anti-crash geometry and better heat exchange.
Water resistance i.a.w. IPX-8
Mode Memory: memorizes the last brightness level used in the general modes (except Strobe)
Low Voltage Protection: If the battery’s voltage is lower than 2.8V, TS21 steps down automatically to avoid battery damage by over discharge. At 2.7V the flashlight will turn off automatically.
Advanced Temperature Regulation (ATR) technology: By default ATR will reduce the brightness level automatically when the driver temperature reaches 45°C to prevent overheating. You can set a different temperature threshold by following the thermal configuration guideline.
Firmware:    TS21 uses open source software called Andúril, distributed under the terms of the GPL v3. The source code is available from http://tiny.cc/TKAnduril