I have 2 18650S’s and switched the LED to an XP-L Hi. It does have direct access to Moonlight (Long press from off) and even though I am not a fan of the ascending and descending UI, it’s not the worst I have ever used. The size of the light is what I like the most and the XP-L Hi helps with heat and adds a little throw. The 219D is horrible in that light.
I didn’t even know that an 18300 cell existed. 18500 or 18350 would make more sense.
Edit- I would also like to add that Folmov’s customer service is very good. Took a couple of weeks but the issue I had with my 18650S was resolved by them sending me a new tail cap assy. I was extremely happy with them.