With sleek styling and an intuitive touch slider for dimming and brightening, the new Shelly Plus Wall Dimmer is UL-certified and functions as a standalone device or integrated into virtually any control or automation platform connected directly to Wi-Fi. UL Certified, Next-Generation Wi-Fi Wall Dimmer. It can function as a standalone device, as an accessory to a home automation controller, or may be used as another automation system's component. Simple 4-wire design, with quick Bluetooth inclusion and automatic calibration, Shelly Plus Wall Dimmer saves integrators valuable time and eliminates complexity in the smart home installation process.