For what do you use the Light Multiplier?

So, I've completely embraced the Dynamic Lighting for my campaigns. It's a great feature and the recent update to a more 5e Darkvision-esque Token Vision helped me a lot to create a good feeling on my maps. However, I still struggle to find a use for the Light Multiplier Tool. I can't even completely comprehend what it does. The only thing I observed until now: it increases/decreases the radius where Low Light becomes Bright Light for a Token without  changing the overall Vision Sight. This seems very specific to me; it seems like it fulfills a very, very detailled need and I'm sure I overlook something. So, what do you use Light Multiplier for? Is it any good/useful?

I don't think it has a use for D&D5e. Some systems have low-light vision (Pathfinder?) for which it works.

Yeah, I use it all the time in my homebrew campaign where there's a "Nightvision" skill for rogues. So a thief with +50% Nightvision would get a Light Multiplier of 150%, and would be able to see 45 ft by the light of a lantern when everyone else in the party can only see 30 ft. It seems to be functioning as intended, increasing both the bright and dim light radii of all light sources by the specified amount. It really makes a big difference on maps lit by numerous dim light sources like torches. Most of the characters see little islands of light scattered across the map, but a character with a high Nightvision score (i.e., high Light Multiplier) can see most of the map. Makes it a much sought-after skill!

Ah okay, so it's more usable in other systems. Thanks!