Ooops...sorry, I was certain that NIGHTWATCH is a brand sold or at least manufactured by ENOGEAR, see NIGHTWATCH IRA with XHP70.2 for reference.
http://kaidomain.com/Nightwatch-IRA-Cree-XHP70_2-White-6500K-3800-Lumens-6-Mode-LED-Flashlight-Black
https://budgetlightforum.com/t/-/48891
That's why I was thinking you could ask Jackie (the owner of ENOGEAR and FIREFLIES). May I ask what manufacturer is behind the NIGHTWATCH NI40?
I would be highly interested into the NI40 but as I said it sacrifices a lot of turbo runtime due to the low thermal stepdown threshold of only 50°C.