The Shelly Dimmer 2 is a smart switch unit featuring a full set of luminosity adjustment for an extremely broad range of halogen lights, dimmable LEDs and transformers between 110-230V. Also featured in the Shelly Dimmer 2 is precise power monitoring, enabling you to keep track of your energy consumption and is compatible with Shelly's wide range of Smart Automation processes (Shelly Smart Scenes and Scheduling). The Shelly Dimmer 2 doesn't require a neutral line to provide a full suite of dimming possibilities, and can be installed in minutes in wall mounts or electrical control panels.