I’m aware of what a lumen is. The other guy apparently doesn’t have a clue. If an incandescent bulb and an LED bulb each put out 500 lumens, they are equal in terms of light output. Other guy is trying to declare that the type of bulb matters in this measurement. It’s like saying a mile is a different length measurement for walking than it is in a car. It’s ridiculous.
Sorry I must have replied to the wrong poster. My bad.