Another question, lol. How long do batteries usually last before they need replacing? And is it a steady downwards gradient of lack of brightness or does it run at full then drop off? Thanks for bearing with this thread, just trying to consolidate things so I dont spam up the forum.
That'll depend on many, many,
many factors. It's hard to get a good estimate. But I can tell you that, yes it is a gradual decrease in brightnes, although you won't start
really noticing it until it gets to the point where you the batteries are just about dead.