NCR18650B battery
Solarforce L2M
AR coated lens (not actually necessary, but makes your P60 look sexy as hell and doesn’t cost much)
drop in
Since you’re new, you probably value higher total lumens over CRI or tint, so go for the 4 mode SMO cool white drop in, or OP reflector if you want less throw.
Also, please use the search function to look for similar posts because you’ve already made 7 just today.
New flashlight user here, Solarforce L2P drop in question
Not another thread asking for a 1*18650 recommendation
What is the difference between the 501 and 502 series of lights?
Help with P60 drop in type torches