If you want something 18650 and small, there is the DQG 4th Tiny 18650. It’s smaller than the Folomov. Rock solid clip that won’t go anywhere. Mode, Low 3.5, Mid 80, High 300 and Turbo 850. Nice UI. Single click for low, double click for Mid, triple click for High, press and hold for Turbo. Single click for off. TIR lens, nice beam if you like TIR’s. I do but some don’t.

You might be able to get a coupon code from one of the guys.