A novel light modification device is described that includes an optical
wheel having at least two light modification sections, the optical wheel
being turned by an electric powered actuator and the electric power used
to operate the actuator being provided by a light power to electric power
converter. All of the optical wheel, actuator and light power to electric
power converter being mounted on a housing. The housing being supported
by a mounting mechanism so that light from a light source is aligned to
illuminate the optical wheel and the light power to electric power
converter.