Patent ID: 8214084

Claim:
A system for use in conjunction with a conventional light fixture that is electrically connected to a power source and that is configured to receive a standardized electrical connector of a conventional light and with a building environment regulator that regulates at least one environmental condition in one or more rooms of a building, the system comprising: an LED-based light including at least one electrical connector compatible with the conventional light fixture, at least one LED, a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, an LED controller operable to control the at least one LED in response to the first signal, and a transmitter operable to transmit a second signal indicative of whether the area is in the occupied state or the non-occupied state, wherein the LED controller estimates an amount of power being used by the building and controls the at least one LED based on the estimated amount of power; and a regulator controller in communication with the transmitter and operable to control one or more functions of the building environment regulator in response to the second signal.