Abstract: A lighting device includes an illumination part, and a power connection part adapted to transfer outside power to the illumination part and for preventing an electrical short circuit. The power connection part includes at least two power connectors which are separated from each other and into which the external power is transferred and an insulator provided between the at least two power connectors and coupled with the at least two power connectors.

Abstract: Disclosed are a wall structure and a lighting system using the same. The wall structure in accordance with one embodiment of the present invention includes an installation surface on which an electronic apparatus is installed; a first conductive attachment part provided at the installation surface to be attached to the electronic apparatus, and electrically connected with a first terminal of a power source configured to supply power to the electronic apparatus; and a second conductive attachment part provided at the installation surface to be attached to the electronic apparatus, spaced from the first conductive attachment part, and electrically connected with a second terminal of the power source configured to supply power to the electronic apparatus.

Abstract: A lighting device includes an illumination part, and a power connection part adapted to transfer outside power to the illumination part and for preventing an electrical short circuit. The power connection part includes at least two power connectors which are separated from each other and into which the external power is transferred and an insulator provided between the at least two power connectors and coupled with the at least two power connectors.

Abstract: A lighting apparatus includes a rail unit, and an electric unit that is installed on the rail unit so as to be adjustable in position. The electric unit makes contact with the rail unit and receives power from the rail unit. In the lighting apparatus according to the present invention, a plurality of electric units can be installed on a rail unit so as to be adjustable in position, and even if the position of each electric unit is changed, power can be reliably supplied from the rail unit to the electric unit. Therefore, the present invention can be effectively used as lighting for several places, for instance, a place with a comparatively large area, or a place where intensely bright lighting is required.

Abstract: Disclosed are a wall structure and a lighting system using the same. The wall structure in accordance with one embodiment of the present invention includes an installation surface on which an electronic apparatus is installed; a first conductive attachment part provided at the installation surface to be attached to the electronic apparatus, and electrically connected with a first terminal of a power source configured to supply power to the electronic apparatus; and a second conductive attachment part provided at the installation surface to be attached to the electronic apparatus, spaced from the first conductive attachment part, and electrically connected with a second terminal of the power source configured to supply power to the electronic apparatus.

Abstract: Disclosed are a current monitoring apparatus for monitoring an electrical current flowing through a wire, and a current monitoring system using the same. The current monitoring apparatus includes a power generation part connected to a wire to generate alternating current (AC) power due to electromagnetic induction with the wire, and a current measurement part connected to the wire and measures the electrical current flowing through the wire. The current monitoring apparatus uses the power generated by the power generation part.

Abstract: A lighting apparatus includes a rail unit, and an electric unit that is installed on the rail unit so as to be adjustable in position. The electric unit makes contact with the rail unit and receives power from the rail unit. In the lighting apparatus according to the present invention, a plurality of electric units can be installed on a rail unit so as to be adjustable in position, and even if the position of each electric unit is changed, power can be reliably supplied from the rail unit to the electric unit. Therefore, the present invention can be effectively used as lighting for several places, for instance, a place with a comparatively large area, or a place where intensely bright lighting is required.

Abstract: A power line communication apparatus, device control apparatus, and device control method are disclosed. By controlling the phase of AC power with reference to a zero cross point during power line communication, the power line communication apparatus enables not only data to be transmitted and received in a manner robust against noise and impedance but also the receiving end to be miniaturized. The power and operation of household devices can be controlled through the power line communication apparatus, thereby eliminating the need for separate communication networks when a remote control system is built in the home.

Abstract: Disclosed is a lighting fixture. The lighting fixture includes reflecting part having an opening which penetrates the reflecting part, a light source irradiating light toward the reflecting part, a mounting part which mounts the light source thereon, a circuit part disposed at an opposite side to the opening of the reflecting part and driving the light source, and a power connecting part supplying power from outside to the circuit part. With this lighting fixture, since light irradiated from the light source is reflected by the reflecting part before exiting the lighting fixture, the light is not directly emitted towards a user, thereby reducing glare. Further, the reflecting part, the light source, the circuit part and the power connecting part are combined into an integrated module, thereby permitting easy installation while providing a compact outer appearance.

Abstract: A lamp socket includes connection terminal bodies including connection terminals provided in sides of the lamp socket to contact with connection pins of the lamp, and connection terminal recesses into which the connection terminals are inserted, and connection caps to slide to press and fix the connection pins when the connection pins contact with the connection terminals.

Abstract: A sprinkler and a method for controlling the same are disclosed. The sprinkler and the method can uniformly supply water on a variety of topographies without any waste of water. The sprinkler includes a fluid supply pipe to supply fluid; a nozzle to spray the fluid supplied from the fluid supply pipe; a flux regulator to control an amount of the fluid supplied to the nozzle; and a controller to control operation of the flux regulator.

Abstract: Disclosed are a lamp socket and a light appliance having the same. The lamp socket includes connection terminal bodies including connection terminals provided in sides of the lamp socket to contact the connection pins of the lamp and connection terminal recesses into which the connection terminals are inserted, and connection caps to slide to press and fix the connection pins when the connection pins contact the connection terminals. Pressure against the lamp is eliminated when the lamp is installed or separated so that the lamp is prevented from being broken. The installation of the lamp can be improved.