To my understanding as it has been explained to me - "Don't shoot the Messenger !"
Their rep says that it only allows the ballast to draw power at specific points along the sine wave where it is most efficient - I want to say 52 degrees but don't hold me to that.
It also acts as a traditional on off controller/timer - turning phases off individually or all together.
Their solution for panels with mixed loads - meaning fluerescent and other loads. Is to put the put all the non-lighting loads on one phase and bypass "treating" that phase with the controller. Obviously not possible on three pole /three phase loads and not where it would cause unbalanced neutral load.
