If you’re in rural areas often you’ll know there’s dark eyesight adjustment. It’s incredible I can see feet ahead just from my wristwatch’s backlight once dark adjusted. It’s also why I like the Eufy stick-on at home as they are not bright so limit the harm to night vision.
If you have a bright light you can’t control brightness you’re a few minutes less dark-adjusted after seeing it, or worse a red spot in your eyes a little blind for a minute. So it’s key to be able to adjust brightness.
Based purely on the words here that brightness adjustment is based on how high you lifted it?
I’ve also been reading about app support in some such products, is that in this product or coming soon? So remotely control brightness?