Abstract: A light string is comprised of a housing assembly, a light emitting source, a first conductive lead wire and a second conductive lead wire. The housing assembly is comprised of a light cap extending from a housing. A spacer plug secures a first and second conductive lead wire, and an light emitting source to the housing assembly. A first conductive lead wire and a second conductive lead wire each extend into the housing and are secured within the housing via the spacer plug. An insulative projection of the spacer plug is seated between the first conductive lead wire and the second conductive lead wire within the housing so as to prevent a direct electrical short between the first conductive lead wire and the second conductive lead wire. Glue is used to fill the housing to create a waterproof electrical connection.

Abstract: An illuminable decoration comprises at least two trunk sections, each trunk section includes a hollow tube and a cable assembly coupled to each trunk section. Each cable assembly comprises a first modular electrical connector end that has an inner socket and an outer plug that circumscribes the inner socket. Further, each cable assembly comprises a second modular electrical connector end that has an inner plug and an outer socket that circumscribes the inner plug. A first electrical wire electrically couples between the inner socket of the first modular electrical connector and the inner plug of the second modular electrical connector. Also, a second electrical wire electrically couples between the outer plug of the first modular electrical connector and the outer socket of the second modular electrical connector. When two trunk sections are assembled together end-to-end, the trunk sections are mechanically and electrically coupled to form a modular electrical distribution system.

Abstract: An illuminable decoration comprises at least two trunk sections, each trunk section includes a hollow tube and a cable assembly coupled to each trunk section. Each cable assembly comprises a first modular electrical connector end that has an inner socket and an outer plug that circumscribes the inner socket. Further, each cable assembly comprises a second modular electrical connector end that has an inner plug and an outer socket that circumscribes the inner plug. A first electrical wire electrically couples between the inner socket of the first modular electrical connector and the inner plug of the second modular electrical connector. Also, a second electrical wire electrically couples between the outer plug of the first modular electrical connector and the outer socket of the second modular electrical connector. When two trunk sections are assembled together end-to-end, the trunk sections are mechanically and electrically coupled to form a modular electrical distribution system.

Abstract: An illuminable decoration comprises at least two trunk sections, each trunk section includes a hollow tube and a cable assembly coupled to each trunk section. Each cable assembly comprises a first modular electrical connector end that has an inner socket and an outer plug that circumscribes the inner socket. Further, each cable assembly comprises a second modular electrical connector end that has an inner plug and an outer socket that circumscribes the inner plug. A first electrical wire electrically couples between the inner socket of the first modular electrical connector and the inner plug of the second modular electrical connector. Also, a second electrical wire electrically couples between the outer plug of the first modular electrical connector and the outer socket of the second modular electrical connector. When two trunk sections are assembled together end-to-end, the trunk sections are mechanically and electrically coupled to form a modular electrical distribution system.

Abstract: An optical cover is provided for combining with each lighting unit of a light string and includes a cover body and a mounting member. The cover body is provided on an external surface thereof with a sleeve, in which a through hole is formed for receiving and holding the lighting unit therein. The sleeve is provided with, on opposite sides thereof, with notches that receive extension of an electrical cable of the light string therethrough. The mounting member is mountable to the sleeve of the cover body to fix the lighting unit in the through hole and also fix the electrical cable in the notches. In this way, a user is allowed to select and arrange optical covers of different colors for respectively mounting to multiple lighting units of the light string.

Abstract: Disclosed is an LED light string manufacturing method, as well as an LED light string manufactured with the method, which generally involves four components that are assembled through three operations or steps to allow for automatic mass production of LED light strings thereby saving material cost and increasing assembling efficiency. The four components include an upper housing member, a lower housing member, electrical wires, and an LED-based light emission element (with or without a cover). Two conductive pins of the LED-based light emission element are fixed to conductors of the electrical wires through welding and are then disposed between the upper and lower members of the housing, which are subjected to ultrasonic fusion for secured combination thereby covering and housing the electrical wires and the LED-based light emission element therein in one operation. The method is simple and very efficient so that the process is simplified and the cost reduced.

Abstract: Disclosed is a decoration light cable with improved tensile strength, which includes a conductive line, which includes multiple metal filaments twisted together; an insulation layer, which surrounds, encloses, and houses the conductive line in such a way that the conductive line is located at a center of the insulation layer; and one or more reinforcement lines, which are embedded in the insulation layer in such a way that the reinforcement lines are spaced and separated from the conductive line. The decoration light cable is applicable to connections among decoration lights to improve structural strength. In addition, when the insulation layer is cut and trimmed to expose the conductive line, the reinforcement lines are cut off simultaneously so that no reinforcement lines are left at the cut site to cause undesired interference with a subsequent soldering operation applied to the conductive line. This improves the convenience and quality of soldering.

Abstract: Disclosed is an LED light string manufacturing method, as well as an LED light string manufactured with the method, which generally involves four components that are assembled through three operations or steps to allow for automatic mass production of LED light strings thereby saving material cost and increasing assembling efficiency. The four components include an upper housing member, a lower housing member, electrical wires, and an LED-based light emission element (with or without a cover). Two conductive pins of the LED-based light emission element are fixed to conductors of the electrical wires through welding and are then disposed between the upper and lower members of the housing, which are subjected to ultrasonic fusion for secured combination thereby covering and housing the electrical wires and the LED-based light emission element therein in one operation. The method is simple and very efficient so that the process is simplified and the cost reduced.

Abstract: Disclosed are a three-way connector and a light string using the connector. The three-way connector includes first and second three-branched casing members that have joint surfaces respectively comprising mateable recesses and projections and receiving three electrical wires embedded therebetween to form a three-branched connection having a connection point where soldering is applied. Ultrasonic is then applied to fuse and bond the two casing members together as a electrical-wire-included three-branched block thereby constituting a three-way connector. The three-way connector can be used in combination with two-way sockets, electrical wires, and LED luminous elements, in series connection or in parallel connection, to form various configurations of the LED light string.

Abstract: Disclosed are a three-way connector and a light string using the connector. The three-way connector includes first and second three-branched casing members that have joint surfaces respectively comprising mateable recesses and projections and receiving three electrical wires embedded therebetween to form a three-branched connection having a connection point where soldering is applied. Ultrasonic is then applied to fuse and bond the two casing members together as a electrical-wire-included three-branched block thereby constituting a three-way connector. The three-way connector can be used in combination with two-way sockets, electrical wires, and LED luminous elements, in series connection or in parallel connection, to form various configurations of the LED light string.

Abstract: A structure of tree-shaped lighting decoration includes an extension cable assembly, which is a modularized assembly adapted to carry a regular voltage supplied from an electric main and has an end forming a cylindrical socket and an opposite end forming a cylindrical plug, a tree-segment tube having an end section forming a retention tubular section that has a reduced portion for positioning and retaining the cylindrical socket, an ancillary component including a conical body that forms therein a stepped bore that has a side opening. The stepped bore of the ancillary component and the cylindrical plug are respectively provided with mated dimple and bump for engaging each other. The ancillary component receiving the cylindrical plug therein is fit into an opposite end of the tree-segment tube to form a tree segment. Alternatively, the extension cable assembly can be used as a stand-alone device.

Abstract: A structure of tree-shaped lighting decoration includes an extension cable assembly, which is a modularized assembly adapted to carry a regular voltage supplied from an electric main and has an end forming a cylindrical socket and an opposite end forming a cylindrical plug, a tree-segment tube having an end section forming a retention tubular section that has a reduced portion for positioning and retaining the cylindrical socket, an ancillary component including a conical body that forms therein a stepped bore that has a side opening. The stepped bore of the ancillary component and the cylindrical plug are respectively provided with mated dimple and bump for engaging each other. The ancillary component receiving the cylindrical plug therein is fit into an opposite end of the tree-segment tube to form a tree segment. Alternatively, the extension cable assembly can be used as a stand-alone device.

Abstract: A design of light string comprises a bulb socket, a pair of conductive wires, and LED electrically disposed onto the bulb socket. The LED is incorporated with a pair of legs which are alternatively in contact with the pair of conductive wires, and then are sandwiched between a pair of first and second casings which jointly configures the light bulb. This configuration simplifies the assembling of the conductive wires and LED such that no need of solder or glue or contacts.

Abstract: A design of light string comprises a bulb socket, a pair of conductive wires, and LED electrically disposed onto the bulb socket. The LED is incorporated with a pair of legs which are alternatively in contact with the pair of conductive wires, and then are sandwiched between a pair of first and second casings which jointly configures the light bulb. This configuration simplifies the assembling of the conductive wires and LED such that no need of solder or glue or contacts.

Abstract: An socket for light string is provided to include a pair of symmetrically arranged first and second casings mated together. Each of the first and second casings is featured with a side opening, and a first and second end channels, interlocking arrangements provided at internal wall thereof so as to securely interlock the first and second casings to configure the socket with a LED seat formed by the openings to host an LED, and passages for securely receiving conductive wires configured by the first and second channels. A partition is provided under the LED seat so as to insulatively isolated the conductive wires. Inner surfaces of the channels are provided with teeth to firmly hold the conductive wires. The socket is preferable for the use of configuring a light string.

Abstract: An socket for light string is provided to include a pair of symmetrically arranged first and second casings mated together. Each of the first and second casings is featured with a side opening, and a first and second end channels, interlocking arrangements provided at internal wall thereof so as to securely interlock the first and second casings to configure the socket with a LED seat formed by the openings to host an LED, and passages for securely receiving conductive wires configured by the first and second channels. A partition is provided under the LED seat so as to insulatively isolated the conductive wires. Inner surfaces of the channels are provided with teeth to firmly hold the conductive wires. The socket is preferable for the use of configuring a light string.

Abstract: An accessory is provided for a light-emitting diode (LED) bulb string. The accessory has a projection portion having a proximal end mounted to a bottom plate and forming a bore for receiving an LED bulb of the bulb string. The bore has a tapering section for securely engaging and thus holding the bulb. The plate has an end remote from the projection portion and forming an end hook for easily engaging and thus mounting the accessory to a Christmas tree. The projection portion has a distal end forming a multiple-facet refraction/diffraction body. The projection portion may serve as a light guide to guide light from the bulb to the distal end thereof and thus the accessory itself may serve as a decoration. The projection portion may be additionally fit into a bore defined in an external, light-transmitting decorative article to support the decorative article at a desired orientation.

Abstract: A lamp string includes first and second wires and a number of lighting units each including a socket receiving a bulb in electrical connection with the wires. The socket includes a husk, which is coupled to the wires and defines a cavity that receives and retains the bulb in such a way to establish electrical connections respectively between first and second contacts of the bulb and the first and second wires, and a plug, which is removably received in the cavity between the bulb and the husk and forms a bore that receives a current bypass device therein. The current bypass device has first and second conductors that are respectively set in electrical connection with the first and second wires. The bore has only an open end to ensure properly installing the current bypass device in the plug.

Abstract: Provided is a light string with a light bulb having additional shunt circuitry. The light string is comprised by a plurality of light bulb units electrically interconnected by conductive wires. Each light bulb unit includes a socket assembly in which a husk along with a light bulb is electrically assembled, each light bulb arranged with switching diode or resistor so as to configure a shunt circuitry. Accordingly, the current flows through the additional shunt circuitry configured by the switching diode or resistor arranged on the husk when the light bulb is fallen, broken or the tungsten filament and shunt circuitry within the light bulb is broken, such that the remaining light bulbs can still functionally work.

Abstract: A rectifier module is provided for simultaneous use with a plurality of light-emitting diode (LED) lamp strings. The rectifier module includes an extension cable having first and second ends to which first and second connectors are mounted and a casing mounted to the extension cable and including therein an electronic circuit. The electronic circuit includes a rectifier element, which can be a diode based circuit or a bridge rectifier, to which a resistor and a capacitor are electrically connected. The resistor can be a variable resistor to allow for manual adjustment. The casing can be mounted to a middle portion of the extension cable or, if desired, can be integrated with either one of the connectors.