JF, yes there is a slight dimming, due to the fact that the system is usually only built to drive 8 outputs at 4.8v, we required 16 lights so the system is run by a 2s lipo and all lights are series together, two lights on each channel to give the desired result, cable runs are also quite long as its a big plane so there are some losses in the wiring. The result is less noticeable when the landing lights are not on, but the video shows all 16 running.

marcs.