The Shelly Dimmer GEN3 is a compact Wi-Fi and Bluetooth smart dimmer for controlling dimmable lights and LED drivers from your phone, by voice or through automations. It fits behind a wall switch and works in installations with or without a neutral wire.

• Works with or without neutral: installs in older wiring with no neutral wire (a Shelly Bypass is required for loads under 20 W in that case).
• Self-calibrating: automatically detects the connected load and sets the correct dimming range.
• Night mode: set a lower maximum brightness for chosen hours.
• Power monitoring: tracks voltage, current and energy use (active power measurement requires a neutral wire).
• Wi-Fi and Bluetooth: also acts as a Wi-Fi range extender and Bluetooth gateway for other Shelly devices.
• Matter-ready: Matter support is planned through future firmware updates.
• Built-in protection: overheating, overcurrent, overvoltage and overpower safeguards.
• Shelly ESP chip: 8 MB flash memory, double that of the previous generation.