Once it’s too thick to comfortably fit in a pants pocket, it may as well be as thick as the old D cell flashlights. I don’t see the point in anything between 18xxx and 26xxx either.
I have the JKK03; It has mode memory and can be switched off from any level with long pressure.
Other: the crown is compatible with that of the C8, at least with that in SS; I put the one in the SS, it screws well and remains only a “step” of about seven tenths of a millimeter between steel and aluminum. Then I put her back because I like it original
I have two of the little single cell Sofirn chargers. One came with my C8F and one came with my SP3. Both chargers are exactly the same and both will hold my Sofirn 21700 and my Shockli 21700 just fine.
The bottom of the charger Says- Li-Poly Charger, USB lithium battery charger for 26650, 18650, 16340, 14500, 10440 lithium battery.
I can insert the 21700 cell with about 2mm space to spare.
I’ll be darned. Lol. You’re right. Thanks for clarifying!! The charger it comes with does fit the Sofirn 4000 mah 21700 battery.
What that single cell charger does NOT fit is the Acebeam 5100 mah 21700 button top battery.
This could be a nice light for a powerful fully regulated and efficient boost driver with tiny sense voltage/resistor and massive inductor/caps powering 3S emitters. Yes, I am different. I like to have full blast on tap from start to end of battery discharge.