Well thought the thorough cleaning had fixed it, but no. Last night using it it started to flicker and light output dropped- flexing the head would cause it to work then cutout. When it was working it was actually significantly brighter than before.
I think the other posters are right that the body is not machined well and only has intermittant contact with the driver board. I decided while we were all waiting for Fasttech to return from hols I’d see if a DIY fix worked.
I cut a ‘washer’ ring from a plastic container lid (was going to cut up one of the GF’s high temp silicone baking dishes but got caught… :zipper_mouth_face: ) using the driver as a template to trace around, then sat it in the flashlight body under the driver- the driver still has just enough room to snugly fit without being loose.
Then I thought seeing as the batteries seem to be a very tight and might (?) be causing the driver board to flex, I’d place some washers (1mm approx) under the end tailcap board.
Putting it back together now it feels everything has a nicer fit and so far I haven’t noticed any flickering even when flexing the head- will test more when it’s dark again.
My bezel seems to not be magnetic- wouldn’t matter to me if it was though.
I feel a bit sorry for Fasttech- obviously their supplier has let them down with this batch, given how nice they are to deal with thus far I’m sure they won’t let us down with a reasonable solution hopefully.