Founded in 1981, Cosmo is a world-renowned optocoupler and relay manufacturer, mainly engaged in the research and development, production and sales of optoelectronic products and LED lighting products, and its optocoupler products are favored by customers with their light, thin, short and small characteristics. Founded in 1981, Cosmo Electronics is a world-renowned Photocoupler and Relay professional manufacturer, and was officially listed on the Taiwan Stock Exchange (TSEC) in 2001. Cosmo's customers are distributed around the world, covering all the needs of modern life and electronics, including: processing, assembly, manufacturing and trading of optoelectronic components and relay components, import and export trade of electronic products and electronic products and other electronic businesses; Decorative lamp manufacturing, trading, renewable energy, self-use power generation equipment industry; Street lamp, power control board, power controller, switch controller, face recognition device.