Tianchang Yiyang Electronic Technology Co., Ltd. was established in 2000. The company specializes in manufacturing air conditioner remote controls, air conditioner control boards, control systems, fixed frequency boards, variable frequency boards, air conditioner intelligent controllers, household ceiling-mounted air conditioner controllers, elevator air conditioner intelligent controllers, refrigerator intelligent controllers, and electric stove controllers for small household appliances. There are dozens of series and thousands of varieties of product specifications and models.