Abstract: Disclosed in the present disclosure are a method and system for producing hexafluoro-1,3-butadiene. It includes: under the action of a catalyst, chlorotrifluoroethylene reacting with hydrogen gas in a first reactor to obtain a mixture, the mixture entering a rectification apparatus, trifluoroethylene obtained by rectification entering a second reactor and reacting with bromine under light to obtain 1,2-dibromo-trifluoroethane; in a third reactor pre-loaded with the 1,2-dibromo-trifluoroethane, adding the 1,2-dibromo-trifluoroethane and solid alkali, and performing reaction to obtain bromotrifluoroethylene; and adding the bromotrifluoroethylene to a fourth reactor holding with zinc powder, an initiator and an organic solvent for reaction, so as to obtain a trifluoroethenyl zinc bromide solution, performing filtration, and then adding a coupling agent for a coupling reaction, so as to obtain hexafluoro-1,3-butadiene.

Abstract: An LED string light includes a first conducting wire, a second conducting wire, and a third conducting wire which are arranged in parallel. The first, second, and third conducting wires all comprise a conducting wire core and an insulation layer coating a surface of the conducting wire core, and the first conducting wire and the second conducting wire define a plurality of lamp welding regions. The LED string light also includes a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions. The first conducting wire is selectively cut off at a plurality of first positions and the second conducting wire is selectively cut off at a plurality of second positions based on whether the plurality of the SMD LEDs are connected in series or in hybrid of series and parallel.

Abstract: An LED string light includes a first conducting wire, a second conducting wire, and a third conducting wire which are arranged in parallel. The first conducting wire, the second conducting wire and the third conducting wire all comprise a conducting wire core and an insulation layer coating a surface of the conducting wire core, and the first conducting wire and the second conducting wire defines a plurality of lamp welding regions. The LED string light also includes a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions. Each SMD LED has a first welding leg and a second welding leg, which are respectively welded onto the first welding spot and the second welding spot at one corresponding lamp welding region, and the plurality of the SMD LEDs are connected in parallel. A plurality of encapsulation colloids respectively coat the plurality of the SMD LEDs.

Abstract: An LED string light includes a first conducting wire, a second conducting wire, and a third conducting wire which are arranged in parallel. The first, second, and third conducting wires all comprise a conducting wire core and an insulation layer coating a surface of the conducting wire core, and the first conducting wire and the second conducting wire define a plurality of lamp welding regions. The LED string light also includes a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions. The first conducting wire is selectively cut off at a plurality of first positions and the second conducting wire is selectively cut off at a plurality of second positions based on whether the plurality of the SMD LEDs are connected in series or in hybrid of series and parallel.

Abstract: The present disclosure discloses an LED light string ornament and a method for producing the same. The LED light string ornament includes an LED light string and a plurality of decorative pieces. The LED light string includes three wires, a plurality of SMD LEDs, and a plurality of adhesive bodies. A part or a whole of the decorative piece are transparent or semi-transparent. The decorative piece includes a first housing and a second housing. The first housing and the second housing are buckled to form an accommodating cavity, and a plurality of LED beads of the LED light string are respectively accommodated in the accommodating cavities of the plurality of decorative pieces.

Abstract: An LED string light includes: a first conducting wire, a second conducting wire, a third conducting wire arranged in parallel, insulation layers of the first and second conducting wires are removed at intervals of the predetermined length along axial direction of the conducting wire to form a plurality of first and second welding spots; a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions, two welding legs of each SMD LED being respectively welded onto a first welding spot and a second welding spot at one corresponding lamp welding region, the plurality of the SMD LEDs being connected in series, in parallel or in hybrid; and a plurality of encapsulation colloids respectively coating the plurality of the SMD LEDs and surfaces of portions of the third conducting wire corresponding to positions of the plurality of the SMD LEDs, to form a plurality of lamp beads.

Abstract: An LED light string with single wire. The LED light string includes one wire including a composite wire core, and a plurality of light bodies. The composite wire core is composed of at least one first conductor layer extending in an axial direction of the wire, at least one second conductor layer extending in the axial direction of the wire, and an insulation layer therebetween. The plurality of light bodies arranged spaced away at set intervals along the axial direction of the wire. Each of the light bodies includes at least one patch LED light-emitting part and an encapsulation colloid coated on a surface of the at least one patch LED light-emitting part. A positive electrode and a negative electrode of the at least one patch LED light-emitting part being electrically connected to the at least one first conductor layer and the at least one second conductor layer, respectively.

Abstract: An LED string light includes: a first conducting wire, a second conducting wire, a third conducting wire arranged in parallel, insulation layers of the first and second conducting wires are removed at intervals of the predetermined length along axial direction of the conducting wire to form a plurality of first and second welding spots; a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions, two welding legs of each SMD LED being respectively welded onto a first welding spot and a second welding spot at one corresponding lamp welding region, the plurality of the SMD LEDs being connected in series, in parallel or in hybrid; and a plurality of encapsulation colloids respectively coating the plurality of the SMD LEDs and surfaces of portions of the third conducting wire corresponding to positions of the plurality of the SMD LEDs, to form a plurality of lamp beads.

Abstract: An LED string light includes: a first conducting wire, a second conducting wire, a third conducting wire arranged in parallel, insulation layers of the first and second conducting wires are removed at intervals of the predetermined length along axial direction of the conducting wire to form a plurality of first and second welding spots; a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions, two welding legs of each SMD LED being respectively welded onto a first welding spot and a second welding spot at one corresponding lamp welding region, the plurality of the SMD LEDs being connected in series, in parallel or in hybrid; and a plurality of encapsulation colloids respectively coating the plurality of the SMD LEDs and surfaces of portions of the third conducting wire corresponding to positions of the plurality of the SMD LEDs, to form a plurality of lamp beads.

Abstract: An LED string light includes: a first conducting wire, a second conducting wire, a third conducting wire arranged in parallel, insulation layers of the first and second conducting wires are removed at intervals of the predetermined length along axial direction of the conducting wire to form a plurality of first and second welding spots; a plurality of SMD LEDs respectively disposed at the plurality of lamp welding regions, two welding legs of each SMD LED being respectively welded onto a first welding spot and a second welding spot at one corresponding lamp welding region, the plurality of the SMD LEDs being connected in series, in parallel or in hybrid; and a plurality of encapsulation colloids respectively coating the plurality of the SMD LEDs and surfaces of portions of the third conducting wire corresponding to positions of the plurality of the SMD LEDs, to form a plurality of lamp beads.

Abstract: The present disclosure discloses an LED light string ornament and a method for producing the same. The LED light string ornament includes an LED light string and a plurality of decorative pieces. The LED light string includes three wires, a plurality of SMD LEDs, and a plurality of adhesive bodies. A part or a whole of the decorative piece are transparent or semi-transparent. The decorative piece includes a first housing and a second housing. The first housing and the second housing are buckled to form an accommodating cavity, and a plurality of LED beads of the LED light string are respectively accommodated in the accommodating cavities of the plurality of decorative pieces.