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An LED lamp assembly including an LED lamp and an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof. Two conductive piercing couplers are engaged in one of the two coupler passages. The LED insert is engaged in an upper housing and the upper

An LED lamp assembly including an LED lamp and an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof. Two conductive piercing couplers are engaged in one of the two coupler passages. The LED insert is engaged in an upper housing and the upper housing is coupled to a lower housing. The lower housing presents a wire receiving space structured and positioned to be aligned with the insulation piercing wire engaging portion of the two conductive piercing couplers when the upper housing is secured to the lower housing. The two leads of the LED lamp are positioned each in one of the two coupler passages in secure electrically conductive and mechanical contact with one of the spring contact portions of the two conductive piercing couplers.

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1. An LED lamp assembly, comprising: an LED lamp having a lens portion and two leads, each of the two leads extending outwardly away from the lens portion;an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof;two conductive piercing couplers,

1. An LED lamp assembly, comprising: an LED lamp having a lens portion and two leads, each of the two leads extending outwardly away from the lens portion;an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof;two conductive piercing couplers, each of the conductive piercing couplers including an insulation piercing wire engaging portion, an insert engaging portion and a spring contact portion, the insulation piercing wire engaging portion presenting a first piercing leg extending downwardly from the insert engaging portion, the insert engaging portion being engaged in one of the two coupler passages of the LED insert and the spring contact portion being resiliently biased toward a lead receiving portion of the LED insert;an upper housing at least partially surrounding the LED insert and receiving the LED insert therein in close fitting apposition and including at least one lower housing engagement structure;a lower housing presenting at least one upper housing engagement structure that engages the lower housing engagement structure of the upper housing such that the upper housing and the lower housing are secured to each other, the lower housing further presenting a wire receiving space therein, the wire receiving space being structured and positioned to be aligned with the insulation piercing wire engaging portion of the two conductive piercing couplers when the upper housing is secured to the lower housing;wherein the two leads of the LED lamp are positioned each in one of the two coupler passages and each of the two leads is held in secure electrically conductive and mechanical contact with one of the spring contact portions of the two conductive piercing couplers. 2. The LED lamp assembly as claimed in claim 1, wherein each of the conductive piercing couplers further comprises a second piercing leg, the first piercing leg and the second piercing leg being oriented to define a wire-receiving slot between the first piercing leg and the second piercing leg. 3. The LED lamp assembly as claimed in claim 1, further comprising a transparent or translucent cover engageable with the upper housing and enclosing the LED lamp therein. 4. The LED lamp assembly as claimed in claim 1, further wherein the LED insert is formed of a first material having greater rigidity than either a second material of the upper housing or a third material of the lower housing. 5. The LED lamp assembly as claimed in claim 1, wherein the LED insert further comprises a first alignment structure that mates with a complementary second alignment structure of one of the upper and lower housing whereby the LED insert is oriented relative to the wire receiving space. 6. The LED lamp assembly as claimed in claim 1, further comprising a two conductor wire having a first conductor and a second conductor and wherein the two conductive piercing couplers each establish electrically conductive and mechanical contact with one of the first conductor and the second conductor establishing a parallel wiring arrangement. 7. The LED lamp assembly as claimed in claim 1, further comprising a wire having a single conductor and wherein the two conductive piercing couplers both establish electrically conductive and mechanical contact with the single conductor and the single conductor is severed between the two conductive piercing couplers establishing a series wiring arrangement. 8. An LED lamp assembly, comprising: an LED lamp having a lens portion and two leads, each of the two leads extending outwardly away from the lens portion;an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof;two conductive piercing couplers, each of the conductive piercing couplers being engaged in one of the two coupler passages of the LED insert;an upper housing at least partially surrounding the LED insert and receiving the LED insert therein;a lower housing that engages the upper housing such that the upper housing and the lower housing are secured to each other;wherein the LED insert is formed of a first material having greater rigidity than either a second material of the upper housing or a third material of the lower housing. 9. The LED lamp assembly as claimed in claim 8, wherein the first material comprises polybutylene terephthalate (PBT). 10. The LED lamp assembly as claimed in claim 8, wherein the second material and the third material are the same material. 11. The LED lamp assembly as claimed in claim 8, wherein the second material comprises polypropylene. 12. The LED lamp assembly as claimed in claim 8, wherein the third material comprises polypropylene. 13. A decorative light string, comprising: a wire including a first conductor and insulation;a plurality of LED lamp assemblies, at least one of the LED lamp assemblies comprising:an LED lamp having a lens portion and two leads, each of the two leads extending outwardly away from the lens portion;an LED insert having a body defining two coupler passages extending therethough from a top to a bottom thereof;two conductive piercing couplers, each of the conductive piercing couplers including an insulation-piercing wire-engaging portion piercing the insulation and engaged to the conductor, an insert engaging portion and a spring contact portion, the insulation piercing wire engaging portion presenting a first piercing leg extending downwardly from the insert engaging portion, the insert engaging portion being engaged in one of the two coupler passages of the LED insert and the spring contact portion being resiliently biased toward a lead receiving portion of the LED insert;an upper housing at least partially surrounding the LED insert and receiving the LED insert therein in close fitting apposition and including at least one lower housing engagement structure;a lower housing presenting at least one upper housing engagement structure that engages the lower housing engagement structure of the upper housing such that the upper housing and the lower housing are secured to each other, the lower housing further presenting a wire receiving space therein, the wire receiving space being structured and positioned to be aligned with the insulation piercing wire engaging portion of the two conductive piercing couplers when the upper housing is secured to the lower housing;wherein the two leads of the LED lamp are positioned each in one of the two coupler passages and each of the two leads is held in secure electrically conductive and mechanical contact with one of the spring contact portions of the two conductive piercing couplers. 14. The decorative light string as claimed in claim 13, wherein each of the conductive piercing couplers further comprises a second piercing leg, the first piercing leg and the second piercing leg being oriented to define a wire-receiving slot between the first piercing leg and the second piercing leg and the first conductor being engaged in one of the wire-receiving slots. 15. The decorative light string as claimed in claim 14, wherein at least one of the plurality of LED lamp assemblies further comprises a transparent or translucent cover engageable with the upper housing and enclosing the LED lamp therein. 16. The decorative light string as claimed in claim 14, further wherein the LED insert of at least one of the plurality of LED lamp assemblies is formed of a first material having greater rigidity than either a second material of the upper housing or a third material of the lower housing. 17. The decorative light string as claimed in claim 14, further wherein the LED insert of at least one of the plurality of LED lamp assemblies further comprises a first alignment structure that mates with a complementary second alignment structure of one of the upper and lower housing whereby the LED insert is oriented relative to the wire receiving space. 18. The decorative light string as claimed in claim 14, the wire further comprising a second conductor and wherein the two conductive piercing couplers of each LED lamp assembly each establish electrically conductive and mechanical contact with one of the first conductor and the second conductor establishing a parallel wiring arrangement. 19. The decorative light string as claimed in claim 14, wherein the two conductive piercing couplers both establish electrically conductive and mechanical contact with the first conductor and the first conductor is severed between the two conductive piercing couplers establishing a series wiring arrangement. 20. An LED lamp assembly, comprising: an LED lamp having a lens portion and two leads, including a first lead and a second lead, each of the two leads extending outwardly away from the lens portion, the first lead including a first end distal to the lens and the second lead including a second end distal to the lens;an LED insert having a body defining two coupler passages, including a first coupler passage and a second coupler passage, extending therethrough;two conductive couplers, each of the conductive couplers being engaged in one of the two coupler passages of the LED insert, each one of the two conductive couplers being in electrical contact with one of the two leads of the LED lamp;a housing at least partially surrounding the LED insert and receiving the LED insert therein;wherein the first end of the first lead is enclosed within the first coupler passage and the second end of the second lead is enclosed within the second coupler passage, such that the first end and the second end do not extend outside the first and second coupler passages, respectively. 21. The LED lamp assembly of claim 20, wherein the LED insert is formed of a first material having greater rigidity than a second material of the housing. 22. The LED lamp assembly of claim 21, wherein the insert material comprises polybutylene teraphthalate and the housing comprises polypropylene. 23. The LED lamp assembly of claim 20, wherein the conductive couplers comprise wire-piercing conductive couplers. 24. An LED lamp assembly, comprising: an LED lamp having a lens portion, a first lead and a second lead, each of the first and the second leads extending outwardly away from the lens portion;a housing engaging the LED lamp and defining two coupler passages, including a first coupler passage and a second coupler passage;a first conductive coupler and a second conductive coupler, a first end of the first conductive coupler being engaged in the first coupler passage of the housing, and a second end of the second conductive coupler being engaged in the second coupler passage of the housing, the first conductive coupler being in electrical contact with the first lead of the LED lamp within the first coupler passage and the second conductive coupler being in electrical contact with the second lead of the LED lamp within the second coupler passage. 25. The LED lamp assembly of claim 24, wherein the first conductive coupler includes a first piercing portion. 26. The LED lamp assembly of claim 25, wherein the first piercing portion comprises a fork portion having two piercing legs and defining a wire-receiving slot.