Abstract: A light-emitting device comprising a heat dissipation carrier, a circuit board, a light-emitting element, a side heat conduction plate, an insulation shell and a light cover is provided. The circuit board is disposed on the heat dissipation carrier. The light-emitting element is disposed on the circuit board. The light cover is directly engaged with the heat dissipation carrier. The side heat conduction plate is engaged with the heat dissipation carrier and comprises a transverse plate and a side plate. The transverse plate carries the circuit board. The side plate is connected with the transverse plate. The insulation shell covers the side plate of the side heat conduction plate.

Abstract: A light-emitting device comprising a heat dissipation carrier, a circuit board, a light-emitting element, a side heat conduction plate, an insulation shell and a light cover is provided. The circuit board is disposed on the heat dissipation carrier. The light-emitting element is disposed on the circuit board. The light cover is directly engaged with the heat dissipation carrier. The side heat conduction plate is engaged with the heat dissipation carrier and comprises a transverse plate and a side plate. The transverse plate carries the circuit board. The side plate is connected with the transverse plate. The insulation shell covers the side plate of the side heat conduction plate.

Abstract: A secure socket apparatus includes a socket unit, a power supply unit and an overload-avoid unit. The socket unit includes at least one socket for receiving a plug of an electronic device. The power supply unit includes a switch module connected to the socket, at least one comparing element connected to the switch module and a sensing module connected to the switch module. The overload-avoiding unit is connected to the comparing element. The overload-avoiding unit can be connected to the mains so that electricity can be provided to the electronic device from the mains through the socket apparatus.

Abstract: A secure socket apparatus includes a socket unit, a power supply unit and an overload-avoid unit. The socket unit includes at least one socket for receiving a plug of an electronic device. The power supply unit includes a switch module connected to the socket, at least one comparing element connected to the switch module and a sensing module connected to the switch module. The overload-avoiding unit is connected to the comparing element. The overload-avoiding unit can be connected to the mains so that electricity can be provided to the electronic device from the mains through the socket apparatus.

Abstract: The present invention is directed to a sealing piston for syringe. The sealing piston includes a first sealing element, a second sealing element, and a third sealing element. The second sealing element is elastic and expandable. One end surface of the second sealing element is connected with the first sealing element, and another end surface of the second sealing element is connected with the third sealing element for constraining the second sealing element. The present invention not only effectively resolves the air-leakage problem of a conventional syringe, but also enhances dispensing accuracy.