I'm pretty sure you have me on ignore but here goes anyway: I've tried to explain this to you several times. Lux is a valid measurement but so is lumen output. Lux is not valid if you don't have a distance measurement. My 650 lumen lights have a lux measurement of 1.3 million. What does that tell you about the light coverage. It also has a lux measurement of 29 lux. Which measurement do you want to use? For bonus points, how far way from the source is each measurement?

Just giving a lux number for a light tells you nothing about the light without the distance to the target. To put it in chemical terms, I have a reaction with compound A and compound B going to compound C. If compound A has a concentration of 4 moles per liter and compound B has a concentration of 2 moles per liter while compound C has a concentration of 6 moles per liter, how long has the reaction been going on and what was the starting concentration of A and B? You can't tell me because you don't have enough information. If I told you a rate constant, you could figure out the problem but without it you can't.

Same holds for a lux measurement. Without knowledge of the distance to the target, the measurement is meaningless. If I have the lumens, I can calculate a lux at any point from the source to infinity. I can't determine if the light is bright or not based on just the lux measurement. A 29 lux light could be a 1 lumen light measured millimeters from the source or a million lumen light measured 10 km from the source. I can't tell and neither can you.