Shenzhen Chengxinda Technology Co., Ltd. is a production factory integrating R&D, production and sales. The company's products cover two major parts: photoresistors (CdS photoresistors) and environmentally friendly photosensitive devices. Professional commitment to environmental protection photosensitive devices (RoHS, security monitoring anti-infrared photosensitive devices), optical coupling (LED coupled CdS) development, production and sales. The products enjoy a high reputation at home and abroad, and are exported to Europe, America, Latin America, Southeast Asia and other countries and regions. The factory is located in Baoan, Shenzhen, the most dynamic city in China's economy.

The company has strong technical force, rich experience in component production, and a number of skilled R&D and production personnel. At present, the company's environmentally friendly photosensitive devices are packaged and manufactured by fully automatic packaging equipment, with good product quality and high precision. It has many kinds of products, such as photoresistors, environmental protection photosensitive devices, photosensitive sensors, photosensitive transistors and so on. Its annual production capacity is more than 100 million, and each index has reached the advanced level of the same kind of products in the world. In line with the product concept of environmental protection and energy saving, the company constantly innovates and reforms to meet the requirements of the international and domestic markets.