Founded in 1847, Siemens AG is a global leader in the field of electronic and electrical engineering. Siemens entered China in 1872. For more than 140 years, it has unremittingly provided comprehensive support for China's development with innovative technology, excellent solutions and products, and has established its leading position in the Chinese market with outstanding quality, reliable reliability, leading technological achievements and unremitting pursuit of innovation. We have designed a variety of wall switches for it, this is one of them. Siemens AG of Germany, founded in 1847, is a global leader in the field of electrical and electronic engineering. Since its entry into China in 1872, Siemens has been providing comprehensive support to China's development with innovative technologies, excellent solutions and products for more than 140 years. Besides, it has established a leading position in the market of China with its outstanding quality, trustworthy reliability, leading technical achievements and relentless pursuit of innovation. This is one of several wall switches we've designed for it.