Beginners guide/tutorial wanted

I am new, have spent some hours, but not found a “Beginners guide/tutorial/FAQ flashlights”, text and/or video to understand all the diff. tech. stuff like lumen, CRI, SST, thrower, emitter, battery sizes and mAh etc.

I have been on several manufacturers websites. I have not found any FAQ.

There is https://flashlightwiki.com/

It’s not very active or very up to date but the basics should be covered there…

thank U, looks ok for a start

Crossposting. :wink:

yes, crossposting, warum nicht ? super, vielen Dank

CRX: wow, thanks a lot, some people (and U are one of them) spent a lot of time making great posts !

Understanding the ANSI FL1 Standard

Interesting that article says CPF is the most active forum. I was thinking recently that BLF seems busier now.

This youtuber usually goes into depth with his reviews,he’s a member here as well.

Kevin Z: Thanks, he is new to me

I said the wiki was outdated. :wink:

Narmattaru’s got you covered.

Darn, Jack beat me to it.

This is a deep dive into batteries: https://batteryuniversity.com/