I have four G5 Pro lamps and tried to set them to 18.5k using the Kelvin slider. What really matters to me is that only 2 of my lamps follow this setting. The other two lamps only switch on some of the required LEDs. I have removed and re-added all the lamps from Mobius without success. I then calibrated all the lamps, also without success. Now I ask myself, is it all usable and how reliable is it all?