Never this ‘Yinding 5050’ LED will do 5000 lumens.
Look for my test. These round-die LEDs in 5050 footprint are able to reach up to 2500 lumens, not 5000. Maybe the “L90” LEDs are able to do so, but I did not test them and I think 5000 lm are also not possible, not in a realistic operating condition in an enclosed flashlight host.
These non-existant informations are a common thing for chinese products like LEDs or even flashlights, which is not an excuse. I want also information, not corporate speech or “marketing”.