Orbiter is a very powerful fixture, with many different features. The value of 500 W includes the entire set of ports, interfaces like USB and Ethernet switches, and electronics in addition to the ARRI Spectra LE (light engine). Also considered are an external supply like the control panel in remote setup, and future motorized accessories.
Overall, the power consumption of all these additional electronics is about 100 W, leaving 400 W for the light engine. Divided between the light engine's...