A few guys have tested the Sofirn 18650’s and they test out to be good batteries with the specs to back up whats on the wrapper.
I don’t know what size limitations are on that light and I only own two 26650 lights. One not really high drain and one 3500 lumen light. I use purple Efest, they come in a 5000mah 45amp 18amp continuous version and a 4200mah 50amp 35amp continuous version. That’s the only 26650’s I have ever used and they work really well.