The present invention discloses a method, system, and computer readable medium for configuring an electronically steerable beam of a traffic signal light. Application of the device is to electrical household appliances equipped with a heating device. The cylinder liner may also have a seal end stop formed on an outer annular surface of the hollow generally cylindrical body an axial distance away from the flange, and an annular groove formed within the outer annular surface of the hollow generally cylindrical body at a location between the end stop and the bottom end. The predetermined constraints can include transmit power constraints, or interference constraints.