This model of the Nexera™ uses an easily obtained standard set of dimmer-friendly 575 Watt lamps. The optical design for this fixture started with the filament size for this lamp family. We decided to offer a power rating of only 575W because the increase in filament size and decrease in efficiency wasn't worth the additional power consumption.

The reflective mirror, designed just for the source, is coated with a cold mirror so the beam is cooler maing it easier for the people onstage with not as much heat in the beam. (external link)