(Also see Energy Efficiency)
LED Lamps and Fixtures
Solar-powered dimmer for tubular skylights: http://www.odl.com
CFL dimmer, "Decora CFL": http://www.leviton.com
Intercom system, music system, structured wiring: http://www.linearcorp.com
Wireless control system, self-powered: http://www.vervelivingsystems.com