Now we have two copies of the same graph, the first shows all the traces taken to check the behaviour during the ANSI 30 second measurement time. As the ANSI output should be measured at 30s, the 8s Turbo output would mean ‘ANSI Turbo’ measurement was 3611 lm, so this means we can’t actually state an ANSI Turbo output and instead I have gone for ‘max at switch on’ for the value of Turbo, and this is what was used in the output table. The flood mode only uses the LED lights in the edge of the head while, in the spot mode only the central LED light is used.

Designed with cutting-edge carbon fiber technology, this energy brick is your ultimate companion for on-the-go charging.Having a built in battery pack isn’t perfect either but I’d still expect the cells to last many years. Depending on the size of your pockets, this might be the Goldilocks light that can double the number of lumens you can EDC. On the head of the NITECORE TM20K we find an optical system consisting of SMO reflectors and 19 CREE XP-L HD LEDs, with a maximum power of 20,000 lumens, and optical lenses with anti-scratch coating. This high performance flashlight is a true factotum of illumination with 19 LEDs for a powerful 20,000 lumen max that is astonishing output and cut through 317 yards of the darkness. The memory function will remember the previously used brightness level or special mode when it is next turned on.

I don’t think I have any other rectangular flashlights and the shape will stand out in any collection. The brightness levels are operated by a metal power button on the tail end and a mode button on the side of the tail end. Inspired by the notion to "Keep Innovating" as a global leader of LED flashlights and chargers with over 100 patents and a grand-slam award winner of the American International Design Excellence Awards (IDEA), German iF Design Award, Red Dot Design Award and the Japanese G-Mark (Good Design), NITECORE creates innovative products in a wide variety of fields and leads the industry in new standards of portability, aesthetic, output and functionality.Nitecore’s Tiny Monsters have always been punchy performers, from the first one I tested, (the TM11) all the way through to another Monster light that is Tiny compared to its output. For this light I miss a good low mode: even on a big light I believe a 5-lumen mode or less is a must. The torch is powered by built-in 9600mAh 21700 li-ion batteries, rechargeable via a USB-C port at the tail end and compatible with QC (adapter sold separately). The (at the time) spectacular TM10K recently welcomed a big brother which, as the name already suggests, has double the amount of output.