Just turn harder, often the aluminium threads when they aren’t lubricated grab onto the brass retaining rings. I had to pull a brass pill out of an aluminium host the other day and it needed two people to do it. One holding the body with a rubber gripping cloth and one with the circlip pliers with a bar going through the handle for leverage. Once it came out it was fine, but there was no lubricant, no threadlocker etc, it was just really tight and had stuck in there.
hmm I’m not sure then. Try heating the whole thing up by putting it in a ziplock bag in boiling water. Aluminium expands more than brass does so it might loosen up.
I dont want to try it anymore…. because it my bring more damage to the tail cap… besides i just trying to open it out of my curiousity…
But the sad part is that it is not that accessible to open it…
Funny thing i emailed acebeam asking for what way to open it, clockwise or counterclockwise? First acebeam replied turning it to clockwise to open it…. but no success…so i emailed again… acebeam replied trying to turn it counterclockwise…. showing only they are not sure which way to open it…… tsk tsk…
I have a Vinh K40Mvn and it is a Supbeam. The driver is slightly different than the one in our Acebeam K40M and looks like the driver from the Supbeam K50 group buy that I received. The resistor that Vinh added looks like a white zero ohm resistor.
Here’s a link to the Vinh K40M:
“K40Mvn (Must Have) | Candle Power Flashlight Forum
Note that Vinh says ”Mode 6 max brightness is intended to run on short burst only. Will get hot in about 3-4 minutes.” I can vouch that this is a true statement!
I will mod my Acebeam K40M and then probably sell the Supbeam Vinh K40Mvn…. it’s a very popular light but I don’t need two of them. :bigsmile:
Also would like to add that De-domeing the MT-G2 LED is great in this light. Really adds to throw which is super nice to have with the big refector in this K40M. And as you know the MT-G2 LED already is a great flood LED so dedoming gives the best of both worlds in this K40M.
Both of mine are dedomed and now I wish I had taken before and after beam shots.