What do the terms ‘LUMEN’ and ‘LUX’ actually mean and how are they related? It is only possible to draw clear conclusions about the subsequent lighting pattern by combining these two terms.

= Amount of light that the light source can produce (LED), thus the light power of the LED

It collects the light from the
LED by reflection and refraction
almost without loss

= Illuminance, indicates the intensity of the light that arrives
at a specific point on an illuminated surface

• The higher the lumen value, the more light is
  provided by the lamp
• LUX values give information about the brightness
  of a point in the lighting pattern
• The optics determine the distribution of the light from
  the LED
• The more the optics focuses the light, the greater are the LUX values
• Good optics illuminate close range, sides and distant
  areas equally well