First we need to talk about Lumens/Lux
The number of LUMENS = Total amount of photons that come out of the light.
It doesn’t matter where the photons go, just that they come out of the light. So can spray it everywhere or tightly focus it, and it's still the same lumen output
“More lumens is always better” = “more suspension is always better”, it isn't always the case and it's more about how you use the available lumens.
The number of LUX = the number of lumens that hit a certain area (lumens/square meter)
This is the measure of intensity of an area of light.
This is what you are seeing when you (or a YouTube reviewer) says “Holy cow that’s BRIGHT!”. Also please note that staring straight into a light is always going to feel bright no matter what.... it's not a valid way to judge a lights brightness....
More lux is what lets you see further down a trail or road. Just like lumens it is more important how the lux is balanced then the total number.