I tested the Nitecore TM9K using the Texas Ace Lumen Tube calibrated with Maukka lights and a Sekonic C-800-U spectrometer. Output taken at 2s from turn-on.

Nitecore TM9K Turbo 8,190 lumens 6637K 0.0017 DUV 69.7 CRI Blue light relative amplitude 1.00 -25.2 R9 44.2 R12 65 Rf 96 Rg included battery
Nitecore TM9K M4 1,879 lumens 6247K 0.0057 DUV 69.0 CRI Blue light relative amplitude 1.00 -34.7 R9 41.2 R12 66 Rf 95 Rg included battery
Nitecore TM9K M3 446 lumens 6109K 0.0072 DUV 69.2 CRI Blue light relative amplitude 1.00 -37.1 R9 40.0 R12 67 Rf 95 Rg included battery
Nitecore TM9K M2 124 lumens 6121K 0.0066 DUV 69.1 CRI Blue light relative amplitude 1.00 -35.9 R9 40.5 R12 67 Rf 95 Rg included battery
Nitecore TM9K M1 33 lumens 6543K 0.0025 DUV 70.0 CRI Blue light relative amplitude 1.00 -26.6 R9 41.7 R12 66 Rf 96 Rg included battery

Note: the TA lumen tube gives lower readings for mules and extremely floody lights. I think we can add 5-10% to the measured output of this light.

The light looks good and it is extremely floody with a somewhat noticeable hotspot at the center. Makes for a great indoor light especially for large spaces. The output is really limited by the 5000K battery in it. I think it is a 50E or M50T rated at 10A continuous. If they used the brand new Samsung 50G rumored to have 15A continouous, it should be able to hit 10k lumens. I'm sure if it used a high current battery like the P42A or 40T, it can do 12k+. I know this is meant as a tactical light but I just wish it could tail stand. I don't like the CCT and tint though so probably won't ever use it as a tail stand light.