A card connector, a card holder, and a terminal device, where the card connector includes a plurality of first terminals and one or more second terminals. The first terminals are arranged to form a first card access area that installs a first card, and the first terminals are configured to be electrically coupled to the first card. The one or more second terminals are distributed on a periphery of the first card access area, the first terminals and the one or more second terminals form a second card access area that installs a second card, and the first terminals and the one or more second terminals are configured to be electrically coupled to the second card.

A low profile lighting adapter can include a first housing section configured to hold an electrical ground connection, and a second housing section configured to couple with the first housing section, the second housing section including a planar surface orthogonal to the first housing section. The low profile lighting adapter can include a second electrical connection disposed in the first housing section and opposite of a first electrical connection, wherein the first housing section is configured to allow individual actuation of the second electrical connection along an axis orthogonal to a planar surface of the second housing section. The low profile lighting adapter can include an extending arm coupled to the second housing section and configured to rotate about the axis. Certain of the disclosed embodiments can permit a live connection to be individually set at different levels to engage different electrical circuits on a light track.

An in-wall power adapter adapted to receive a voltage is described. The in-wall power adapter may comprise a first plurality of contact elements comprising a first contact element adapted to receive a line voltage signal, a second contact element adapted to receive a neutral voltage, a third contact element adapted to receive a ground voltage, and a fourth contact element adapted to receive a communication signal; a recess adapted to receive a control module; a switch having a first terminal coupled to receive the line voltage; and a second plurality of contact elements associated with the recess and comprising a fifth contact element adapted to receive the communication signal.

An in-wall power adapter adapted to receive a voltage is described. The in-wall power adapter may comprise a first plurality of contact elements comprising a first contact element adapted to receive a line voltage signal, a second contact element adapted to receive a neutral voltage, a third contact element adapted to receive a ground voltage, and a fourth contact element adapted to receive a communication signal; a recess adapted to receive a control module; a switch having a first terminal coupled to receive the line voltage; and a second plurality of contact elements associated with the recess and comprising a fifth contact element adapted to receive the communication signal.

An in-wall power adapter adapted to receive a voltage is described. The in-wall power adapter may comprise a first plurality of contact elements comprising a first contact element adapted to receive a line voltage and a second contact element adapted to be coupled to a load; a recess adapted to receive a control module; a second plurality of contact elements associated with the recess and comprising a third contact element coupled to the first contact element and a fourth contact element coupled to the second contact element; a switch coupled to receive the line voltage at a first terminal by way of the first contact element; and a connector coupled between a second terminal of the switch and the second contact element; wherein the connector is in a closed position when no control module is in the recess

A control module adapted to be attached to a power adapter is described. The control module comprises a plurality of contact elements including a first contact element adapted to receive a line voltage and a second contact element adapted to receive a reference voltage; a first actuator extending from a housing of the control module and adapted to engage with a connector of a power adapter; a second actuator extending from the housing of the control module and adapted to engage with a tamper resistance element of a power adapter; a control circuit adapted to generate a signal; and a third contact element coupled to the control circuit; wherein the control circuit generates to the signal adapted to be routed to the power adapter by way of the third contact element to detect a change in a state of a switch of a power adapter.

An in-wall power adapter configured to apply a voltage to a load is described. The in-wall power adapter may comprises a recess adapted to receive a control module; a first connector having a first contact element adapted to receive a first prong of a plug, a second contact element adapted to receive a contact element of a control module, and a third contact element adapted to receive a wire of a junction box; a second connector having a fourth contact element adapted to receive a second prong of a plug, a fifth contact element adapted to receive a contact element of a control module, and a sixth contact element adapted to receive a wire of a junction box; and a third connector having a seventh contact element adapted to receive a third prong of a plug, an eighth contact element adapted to receive a prong a contact element of a control module, and a ninth contact element adapted to receive a wire of a junction box.

An in-wall power adapter configured to apply a voltage to a load is described. The in-wall power adapter may comprises a recess adapted to receive a control module; a first connector having a first contact element adapted to receive a first prong of a plug, a second contact element adapted to receive a contact element of a control module, and a third contact element adapted to receive a wire of a junction box; a second connector having a fourth contact element adapted to receive a second prong of a plug, a fifth contact element adapted to receive a contact element of a control module, and a sixth contact element adapted to receive a wire of a junction box; and a third connector having a seventh contact element adapted to receive a third prong of a plug, an eighth contact element adapted to receive a prong a contact element of a control module, and a ninth contact element adapted to receive a wire of a junction box.

A light fitting control module able to receive a coupler of a light fitting that is also able connect to an electrically power track. The light fitting is able to be supported and/or powered by the track. The control module comprises a first coupler able to connect with the supporting power track and a second coupler able to connect to the coupler of said light fitting to support and electrically connect said light fitting with the electrically powered track. The control module is configured and adapted to respond to remote command to control at least one degree of freedom of operation the lighting fitting.

A light fitting control module able to receive a coupler of a light fitting that is also able connect to an electrically power track. The light fitting is able to be supported and/or powered by the track. The control module comprises a first coupler able to connect with the supporting power track and a second coupler able to connect to the coupler of said light fitting to support and electrically connect said light fitting with the electrically powered track. The control module is configured and adapted to respond to remote command to control at least one degree of freedom of operation the lighting fitting.