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.