I contacted Craig from Illumination Supply. He's sending me a replacement EA4! He's going to make sure the bezel is square to the body, and hopefully no rattle.
Dunno mate. I think they all have protruding vessels as the one I sold was the same. Rattle varies, i know that much. let us know if you get one with a flush bezel please!
In a German flashlightforum they discuss the following feature of the EA4: go in SOS mode, finish it by a half click, wait 3 minutes during which the blue LED is lighting continuously and be surprised that the EA4 goes on by itself in high-mode after 3 minutes.
arn357- I tried it and it works, don’t know the purpose of it though.