Adopting a precise single control structure, the switch operates sensitively and smoothly with strong key rebound and long service life, which can stably control single-loop equipment such as lamps and small electrical appliances. It is easy to install, compatible with standard 86-type junction boxes, and the wiring is simple and clear, no complex professional tools are needed. It can be easily used for new house decoration or old house switch replacement. The panel surface is finely processed, scratch-resistant and wear-resistant, not easy to turn yellow and discolor, and can maintain a brand-new appearance after long-term use. It is a circuit control accessory that combines safety and practicality.