Do not disturb, please clean up the manual with doorbell switch_Guangdong Futina Electrical Co., Ltd.Guangdong Futina Electrical Co., Ltd., founded in 1995, is a innovative enterprise in researching, developing,manufacturing and selling wiring devices and electrical products. Futina was verified by both ISO9001 and ISO14001，quality and environmental management systems, and all products with quality certificates, such as CCC, CE, CB, BS, SASO, etc. With perfect quality, excellent service and great reputation, Futina has more than 40,000 distributors nationwide, and exports to more than 60 countries worldwide. _smart switch,switch socket,British switch,Italian switch,European switch,extension socket,mcb,distribution box,lighting fixtures