Sky ray STV-V2 emitter and driver mod

I would like to change both the emitter and driver on my SR STL-V2.

I was able to unscrew the XML PCB, but cannot access the driver because the retaining ring holding it in will not unscrew. Anyone else have issues with this? I've tried using strap wrenches (which usually work), and even a vice grip. Nothing worked. My next step maybe heating the head to break any glue that may be holding it down.

Retaining ring shown at the top in the photo.

I’ve heard that cold is often better to break joints than heat. My only other experience is with rusty bolts on the car, where I use freeze-off (freezing penetrating spray) and a butane torch alternately. Works pretty well, but probably not a good idea on a torch :slight_smile:

The first one I received had NO glue but the 3 others did. Seems like the one I did loosen was ”Super Glued” . Heat maybe your friend.

Vice grips and twist, thats what I did. Theuphill does nscrew though, just unscrew it and it comes out towards the reflector.

I can unscrew mine easily.
Which emitter and driver are you gonna use? Links?

My driver also broke when my cat dropped it on the floor. I skrewed everything off except the glued thread and driver and started to heat it up with a a gas stove. The driver burned and my flat stinked really bad for one month. Also the color of the anodizing changed from black to brownish bronze color. But finally the glue burned away and skrewed it off. I also decided to heat whole flashlights body to get an even color on it.
I ordered this driver for a replacement:
http://kaidomain.com/product/details.S020121
One finnish guy says he has used it succesfully. Its a bit pricey, but it drives it a little harder and should be good quality.