Smart dimming controller with new Shelly chip and multiprotocol support. Fits behind switches, enables full smart control without changing setup (Shelly Bypass for Dimmer is required when the device is used without neutral and the load is under 20 W). Shelly Dimmer Gen4 is a single-channel smart dimming controller which allows remote control of dimmable lights and dimming drivers through a mobile phone, tablet, PC, or home automation system. It supports Wi-Fi, Bluetooth and Zigbee connectivity. The device can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services. It can be accessed, controlled, and monitored remotely from any place where the User has internet connectivity, as long as it is connected to the Internet. Shelly Dimmer Gen4 has an embedded Web Interface which can be used to monitor and control the Device, as well as adjust its settings. The Device can be used as trailing edge dimmer switch, with or without neutral wire. Matter compatible.