I recently bought a Nitecore EA8 Caveman flashlight for a friend.
EA8 specs at Nitecore website:
http://nitecore.com/productDetail.aspx?id=76
The EA8 (8 x AA batteries) has similar features and user interface to the EA4 (4 x AA) which I bought last year. Features include 8 brightness levels grouped into 3 operating modes (Daily, Search, Special) with various switching/cycling options, multiple ON and OFF modes, as well as a dual-purpose power indicator light integrated into the button. As the UI can be quite daunting for first time Nitecore users, I ended up creating a colour-coded Quick Reference Guide (cheat sheet) for the EA4. I have now modified (and improved) that guide for the EA8 (see image below).
I have attached a copy of the EA8 Quick Reference Guide in PDF format. There are 2 versions depending on page/paper size (A4 or Letter).
Feel free to download a copy and try it out.
Nitecore EA8 Caveman - Quick Reference Guide A4
Nitecore EA8 Caveman - Quick Reference Guide Letter
The EA4 Guide can be found below:
Nitecore EA4 - Quick Reference Guide (Cheat Sheet)
John