What is said above is nonsense. First of all, you must understand what a tact switch is. A tact switch is not our wall switch as you mentioned, but a kind of tactile switch
Switches have the advantages of small contact resistance charge, precise operating force error, and diversified specifications. They are widely used in electronic equipment and white home appliances, such as: audio and video products, digital products, remote controls, communication products, household appliances, Security products, toys, computer products, fitness equipment, medical equipment, money detector pens, laser pen buttons, etc. Because the tact switch has environmental conditions (the pressure is less than 2 times the elasticity/environmental temperature and humidity conditions and electrical performance) large equipment and high-load buttons are directly replaced by conductive rubber or dome switch hardware shrapnel, such as medical equipment, TV remote control, etc.
Domestic brands: Yingxin, Chenxin, Ruiao, CK, Tongfabao
Foreign brands: Shenming, alps, Panasonic, Meishangmei, etc.
Products like tact switches can completely replace imported products in China. Domestic products should be self-reliant