Abstract: A LED string light made via SMD manufacturing process includes a first conductive wire and a second conductive wire that have respectively a plurality of first and second coupling sections spaced from each other at a selected interval. Each LED is connected to the first and second conductive wires in a juxtaposed manner via a SMD manufacturing process. Each LED has a cathode lead and an anode lead that are respectively connected to the first conductive wire and second conductive wire so that multiple sets of LEDs are juxtaposed onto the first and second conductive wires to form a serial LED string light which is sturdier than the conventional single string LED light.

Abstract: A lamp string structure for emitting light within wide area includes a first conductive wire and a second conductive wire parallel with each other, and at least one lighting element located between the first and second conductive wires. The lighting element has a first conductive filament and a second conductive filament electrically connected to the first and second conductive wires respectively. The lighting element is encased by a package body which has an insulation holding layer to hold the lighting element and an insulation covering layer connected to the insulation holding layer to cover the lighting element. The insulation holding layer and insulation covering layer are light transparent. Thus the lighting element can emit light radially without being constrained by light emission angles and also dissipate heat generated by the lighting element during light emission to reduce heat accumulation.