We hanged SPL-120 on iron rope 2m bellow the roof factory - according to the photometric characteristic we are getting 500 lux now (demand is 300). We will measure actual results with lux meter in next few days.This way of installation allows us very simple moving the light up or down, so we will also test few other positions and intensity of light.The light color (warm white) is perfectly chosen for this purpose (paper/graphic industry) - very close to daylight.