SHEN ZHEN JINGHUA CRYSTAL ELECTRONIC CO., LTD is a professional manufacturer of smart home products. We have a wealth of smart home products (WiFi or ZigBee), including: smart switch (light switch, no neutral switch, curtain switch, scene switch, wireless scene switch, remote control switch), smart doorbell, smart IR, smart socket, smart sensor, smart gateway, etc. All products are powered by Tuya. Products support mobile A P P control, but also support Alexa, Google Home, SmartThings, alexa voice control. Products are widely used in home life, office and real estate projects. Our products have passed C E, F C C, and RoHS certification, and the products have been aging tested to ensure quality. We have a professional team of engineers, young and efficient innovation team, innovative design reliable products. We attract customers from all over the world and export to many countries, including: Southeast Asia, the Middle East, South America, Africa, to unanimous acclaim. We provide professional customization services, for you to quickly customize your brand products, provide personalized icon customization, so that each product is unique. We also provide O D M project services, customize different functions, change the communication protocol. Because of our professional, I believe that any of your product problems and needs, we can solve for you. We look forward to your consultation and cooperation