Go ahead with the questions because everyone here is so much nicer and very knowledgeable (not me) when it comes to anything and everything flashlight.
We all had to start somewhere and the people around here are nicer than most. As I used to say when I was a teacher, "The only stupid question is the one you didn't ask." Feel free to ask.
Welcome to BLF Davx! If you ask a thousand questions you won't be too far behind many of us when we started. Learning about these lights is a big part of the fun.