As we all know, the appearance design of the light touch switch that seems insignificant implies great practical significance. When we use the light touch switch, we not only feel its good turn off performance, convenient adjustment method, etc., but also feel its comfortable function key touch. As for the light touch switch itself, it has excellent structure, materials and processing technology. So, among many factors, what affects the comprehensive quality of the light touch switch? Let's get to know. For the light touch switch, the material and coating of its spring and contact are important. The material and processing technology of shrapnel and contact should not only fully consider the performance of its electrical equipment, but also have the problem of its service life. In general, red copper or phosphor copper materials are often used to better reduce the circuit resistance of shrapnel and contact, and silver plating is used as the electroplating process. If it touches the iron pin, silver plating can block the SO2 vapor in the air to avoid the etching element; However, the duration of corrosion resistance is short. The application of red copper or phosphor copper pin will be better. Therefore, the thickness of the material and silver coating and its treatment process become important to determine the comprehensive performance of the pin. In the current market, the thickness of high-quality silver plating in the sales market is 0.3 μ M or more, the difference between the thickness and unqualified thickness can even be reduced by three times. The silver plating process also has a completely different impact. Some pins are silver plated immediately, while some use double-layer electroplating, such as nickel plating or pre copper plating. After that is the turn off performance of the touch switch. As in physical structure, the light touch switch is turned off by means of the spring and its contacts, so the focus of its impact is the structure of the contact point. Generally speaking, the heavier the contact area, the better, and the cross contact area of the light touch switch contact is a good choice.