Patent ID: 11867368

Abstract:
A two-wire non-polar multifunctional filament and a light string are provided. The two-wire non-polar multifunctional filament includes a transparent substrate, a first conductive terminal, and a second conductive terminal. The first conductive terminal and the second conductive terminal are disposed at an end portion of the transparent substrate. At least two layers of wires are disposed in the transparent substrate, and the at least two layers of wires include a first circuit layer and a second circuit layer. The first circuit layer includes a one-way conduction diode, a single-chip microcomputer control chip, and a plurality of first LED light-emitting chip units, and the second circuit layer includes a plurality of second LED light-emitting chips. The light string may switch a lighting function and a light changing function through changing positive and negative electrodes of electric current, which has a better visual effect and is low in product cost.