Unlike other similar products, the smart switch module is compatible with voice assistants, so you can control lamps, string lights, ceiling fans and other devices with simple voice commands or App, enjoying the convenience of a hand-free experience. Compared to other similar products, this smart switch module is designed with small and compact size, so it can easily hide into your wall light switch box. Your traditional switch and this smart module can work independently in a non-interfering mode. It is constructed of PC material. Multiple program options allow you to plan the exact time to turn lights on/off automatically. The length of this product is 5.2cm, the width is 1.8cm and the height is 4.7cm. The switch module works with ZigBee and has stronger compatibility than other gateways. This product is perfectly suitable for home, household, dorm, bedroom, living room, etc. It can be used for dual control switch. Two switches control the same light. It also can control a two-way dual-control switch. Item Name: Light Switch Module Material: PC Input Voltage: 90-240V AC 50/60HZ Maximum Current: 10A Working Temperature: Minus 10 Degree Celsius-45 Degree Celsius Function: Works with ZIGBEE+RF433 Features: Compact Size, Easy to Install, Long Lasting Size Details: LxWxH: 5.2cm x 1.8cm x 4.7cm/2.05" x 0.71" x 1.85"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Light Switch Module 1 x User Manual