Lockout should always be easier to activate than to deactivate, and Nitecore have made it very easy. I like the controls of the TM20K, they were carefully thought through and as a user you quickly understand how the light works. Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH). In mode 1 press the circular power button to turn the torch on or off, and change the brightness level with the torch on by pressing the side mode button to cycle through ultralow, low, mid and high.

Join me in this Nitecore TM20K review, 20K being the 20,000 Lumens, yes, 20,000 Lumens output from a palm sized light. Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. The integrated advance temperature regulation (ATR) technology regulates the output of the TM20K according to the working condition and ambient environment to maintain the optimal performance. Half the table is normal, then where it starts to list an ND filter, this is a ‘neutral density’ filter that simply cuts the light reaching the sensor by approximately 90%.Designed with cutting-edge carbon fiber technology, this energy brick is your ultimate companion for on-the-go charging.

Despite the 3 push button and 1 toggle switches, the management of the flashlight is not particularly complicated. As you can see from the photo, the temperature values ​​in °C are quite high even if we must consider that they were taken in a closed environment, without ventilation, and activating the maximum brightness (Turbo) of 20,000 lumens several times. However, if you struggle to carry a single 21700 flashlight then you’re not going to be able to carry this either. The NPP30 pouch perfectly fits the powerbank and any essential cables and the NU06 LE beacon light helps you stay visible in high risk ops! The light is clearly designed for tactical use, using 1 of the main modes the bulk of the time, then occasionally jumping to the blinding 20,000 lumens for a few seconds at a time.Shown first is an initial ‘High’ ANSI output trace (Section 1), then the Turbo button held for 30s (Section 2) where the output drops to High after 8s. The 18 tiny reflectors are barely actually reflectors as the LEDs are 2 or 3mm away from each other. As well as a look round the TM20K, this review includes output measurements, runtime graphs, and beamshots to give you the true story of its performance. Equipped with the latest TurboReady™ Technology, the NITECORE TM9K is an ultra compact tactical flashlight to emit a max output of 9,500 lumens with a built-in 5,000mAh Li-ion battery and the USB-C charging port.