A lighting system is incorporated into the ends of the electrical power cords to provide light when working in dark environments. The lighting source is preferably battery-operated, thus allowing the user to find power receptacles when in these dark environments. Additionally, a second power source is included in the plug receptacle end, which can be battery-powered or can be powered by electrical power carried within the power lines. The ends of the extension cord include supports.

A connector (10) includes a main body (30) having a mounting plate (31) to be mounted on a body of a vehicle and a fitting (32) that penetrates through the mounting plate (31) in a front-back direction and a display plate (50) mounted on an outer peripheral side of the connector fitting (32) and on a front side of the mounting plate (31). The display plate (50) includes a display (52), a receptacle (53) provided to be open backward from the display (52) and a light source unit (70) having a light source configured to irradiate the display (52) with light from behind and to be locked from behind by the mounting plate (31) in a state accommodated in the receptacle (53).

The present disclosure discloses a universal socket converter with power bank, including a housing, wherein the front of the housing is provided with a USB power jack, a universal power jack and an indicator light, the upper and lower ends of the back of the housing are respectively provided with a retractable power-taking plug, the middle part of the back of the housing is provided with a foldable power-taking plug; the inside of the housing is provided with a circuit board and a storage battery, wherein the circuit board is provided with a USB power socket and an integrated universal power socket, wherein the USB power socket and the integrated universal power socket are provided with conductors inside, wherein the conductors are connected with the circuit board, the circuit board is connected with the storage battery, the retractable power-taking plug and the foldable power-taking plug.

The present disclosure discloses a universal socket converter with power bank, including a housing, wherein the front of the housing is provided with a USB power jack, a universal power jack and an indicator light, the upper and lower ends of the back of the housing are respectively provided with a retractable power-taking plug, the middle part of the back of the housing is provided with a foldable power-taking plug; the inside of the housing is provided with a circuit board and a storage battery, wherein the circuit board is provided with a USB power socket and an integrated universal power socket, wherein the USB power socket and the integrated universal power socket are provided with conductors inside, wherein the conductors are connected with the circuit board, the circuit board is connected with the storage battery, the retractable power-taking plug and the foldable power-taking plug.

An electrical connector socket is provided, which has a locking device with which an electrical connector can be locked to the electrical connector socket when plugged in, wherein the locking device is arranged at least partly inside the electrical connector socket and protrudes at least partly from the electrical connector socket on the plug-in side. The electrical connector is provided for transmitting high currents and signals, wherein the electrical connector as a locking contour, into which a locking device of an electrical connector socket can engage, wherein the locking contour is arranged on the electrical connector on the plug-in side.

A replaceable socket device includes adapters and a base. Each of the adapters include a jack and contacts disposed on a bottom of the adapters. The base includes sockets, an adapting interface disposed on the socket, and a coupling interface coupled to the adapting interface and an external power source. Each socket includes a bottom surface and a sidewall perpendicularly connected to the bottom surface. One of the adapters inserts in the socket via an opening formed by the bottom surface and the sidewall. The adapting interface is utilized to connect the socket and one of the adapters. The coupling interface is configured to conduct electrical signal from the external power source to the adapting interface. The structure of the adapting interface is used for allowing one of adapters to couple to the socket via the adapting interface. The adapting interface is lower than the bottom surface of the socket.

Embodiments of the invention include LED lighting systems and methods. For example, in some embodiments, an LED lighting system is included. The LED lighting system can include a flexible layered circuit structure that can include a top thermally conductive layer, a middle electrically insulating layer, a bottom thermally conductive layer, and a plurality of light emitting diodes mounted on the top layer. The LED lighting system can further include a housing substrate and a mounting structure. The mounting structure can be configured to suspend the layered circuit structure above the housing substrate with an air gap disposed in between the bottom thermally conductive layer of the flexible layered circuit structure and the housing substrate. The distance between the layered circuit structure and the support layer can be at least about 0.5 mm. Other embodiments are also included herein.

Embodiments of the invention include LED lighting systems and methods. For example, in some embodiments, an LED lighting system is included. The LED lighting system can include a flexible layered circuit structure that can include a top thermally conductive layer, a middle electrically insulating layer, a bottom thermally conductive layer, and a plurality of light emitting diodes mounted on the top layer. The LED lighting system can further include a housing substrate and a mounting structure. The mounting structure can be configured to suspend the layered circuit structure above the housing substrate with an air gap disposed in between the bottom thermally conductive layer of the flexible layered circuit structure and the housing substrate. The distance between the layered circuit structure and the support layer can be at least about 0.5 mm. Other embodiments are also included herein.

An electrical power unit is positionable in or along a work surface and includes a housing with a movable cover that is positionable in open and closed positions at an upper region of the housing. The cover defines an interior region in which a wireless power transmitter is mounted. A lamp unit is disposed in the housing or the cover. The lamp unit is configured so that emitted light is visible from outside the power unit when the cover is closed. The wireless power transmitter is operable to selectively illuminate the lamp unit when the wireless power transmitter is energized. Optionally, at least one direct-contact electrical or data receptacle is provided at the housing, and may be arranged or positioned so that it is accessible at least when the cover is in the open position.

An electrical power unit is positionable in or along a work surface and includes a housing with a movable cover that is positionable in open and closed positions at an upper region of the housing. The cover defines an interior region in which a wireless power transmitter is mounted. A lamp unit is disposed in the housing or the cover. The lamp unit is configured so that emitted light is visible from outside the power unit when the cover is closed. The wireless power transmitter is operable to selectively illuminate the lamp unit when the wireless power transmitter is energized. Optionally, at least one direct-contact electrical or data receptacle is provided at the housing, and may be arranged or positioned so that it is accessible at least when the cover is in the open position.