Research of knowledge point LED lumens
According to concept to know:
Cover the same ground from different angles to know that led lumens. What “Lumen” meant?
Okay, More seriously, the lumen represents the intensity of light,which is the luminous flux. In short, the lumen is light in the amount of the object surface. The equation is simple:research Led lumens new concept. The amount of light to shine on object surface ,call “lumen”.So The lumen is the luminous flux unit.