Shelly Dimmer Gen4

What is THE Shelly Dimmer Gen4?

Smart dimming controller with new Shelly chip and multiprotocol support. Works with or without neutral, fits behind switches, enables full smart control without changing setup.

Installs in a standard electrical wall box and gives you full, easy control over your Shelly devices-ideal for houses, apartments, hotels, and commercial spaces.

New – Multiprotocol connectivity: Wi‑Fi, Bluetooth, Zigbee
New – Matter-certified: Integrates into any Matter ecosystem
No neutral wire needed: Can be used without a neutral wire.
Supported light types: Dimmable LED lamps: up to 150 W, Incandescent bulbs: up to 200 W, Halogen lamps: up to 200 W, Iron-core transformer with low-voltage incandescent lamps: up to 200 VA, Dimmable electronic transformers: up to 200 W
Button fade rate: Provides fine-tuning of the light’s response speed when adjusting brightness
Transition duration: Provides fine-tuning of the light’s fade time when toggling On or Off
Easy control: Through the Shelly app, popular smart home platforms, voice assistants, and various protocols.
Controlled via Shelly Smart Control app
Supports integration via Matter with Home Assistant, Amazon Alexa, Google Home, Apple HomeKit, and Samsung SmartThings

*Bypass is required when the device is used without neutral and the load is under 20 W.

VIEW SPECIFICATIONS SHELLY MOBILE APP

Features

Multi-protocol connectivity

Wi-Fi, Bluetooth, Zigbee – choose what fits your setup best.

Night Mode

Create comfortable ambient lighting and automatically adjust to your predefined brightness during specific hours of the day.

Min/max brightness and fade rate

Adjust brightness levels and transition speeds for more precise control.

Smart scenes

Set custom scenes by combining the device with any other Z-Wave devices (gateway required).

Flexible input control

Use it with your existing switches and/or buttons for a fast and convenient control.

Customize the home screen

Personalize your layout with widgets, buttons, and device groups to match your lifestyle and habits

Smart schedules

Set custom schedules based on your daily agenda, or follow the sunrise/sunset and control your lighting accordingly.

Motion-triggered lighting

Pair with Shelly BLU Motion to automatically switch on lights when movement is detected.

Use Cases

Set the perfect brightness

Control your lights with precision to match any mood or moment. Shelly Dimmer Gen4 lets you fine – tune brightness levels, set min/max output, and adjust fade rate and transition time. Whether you’re creating a cozy evening glow or full brightness for focus, you get smooth, responsive dimming tailored to your needs.

Retrofit your existing lighting system

Upgrade your lighting without touching the wiring. Shelly Dimmer Gen4 installs behind your existing wall switches – even in installations without a neutral wire. Keep the original look of your space while adding full smart dimming control, scheduling, and automation. No need to replace switches or remodel – just smarten up what’s already there.

Automated brightness scheduling

Let your lights follow your day. With Shelly Dimmer Gen4, you can create schedules that automatically adjust brightness based on time or activity – from morning routines to evening wind – downs. You can also sync with sunrise and sunset, so your lighting adapts naturally to the time of day without needing manual control.

Enhance atmosphere in hospitality spaces

Set the right mood for every moment. Shelly Dimmer Gen4 helps you create inviting lighting scenes for restaurants, bars, hotels, or lounges – bright and lively during the day, soft and relaxing at night. With smooth dimming, scheduling, and scene control, you can deliver a consistent and comfortable experience that matches your brand and keeps guests coming back.

Gen4 Devices

Experience next-level smart home automation with Shelly Gen4 novelties.
Each Gen4 device offers multi-protocol connectivity, featuring Wi-Fi, Bluetooth, Zigbee, and Matter.
Choose your connection and set up your Shelly device to work with your preferred smart home network in no time.

Wi-Fi

Bluetooth

Zigbee

Matter

Caution

Installation of certain Shelly devices must be done by a qualified electrician or authorised installer.

Diagrams

Specifications

Physical
Size (HxWxD):	38.5x43.5x17mm / 1.52x1.71x0.67in
Weight:	24.3 g / 0.86 oz
Screw terminals max torque:	0.4 Nm / 3.5 lbin
Conductor cross section:	0.5 to 4 mm² / 20 to 11 AWG (solid, stranded, and bootlace ferrules)
Conductor stripped length:	5 to 6 mm / 0.20 to 0.24 in
Mounting:	In-wall
Shell material:	Plastic
Shell color:	Lime
Print color:	Black
Connectors color:	Gray
Environmental
Ambient working temperature:	-20 °C to 40 °C / -5 °F to 105 °F
Humidity:	30 % to 70 % RH
Max. altitude:	2000 m / 6562 ft
Electrical
Power supply:	220-240 V~ 50 Hz
Power consumption:	< 1.5 W
Neutral required:	No
Min. load without neutral and without a Bypass:	20 W
Dimming type	Trailing edge
External protection:	16 A, tripping characteristic B or C, 6 kA interrupting rating, energy limiting class 3
Output circuits ratings
Max. output power:	200 W
Max. current:	0.85 A
Sensors, meters
Voltmeter (AC):	180 V - 280 V
Voltmeter accuracy:	± 5 % (when used with neutral)
Ammeter (AC):	0 A - 3 A
Ammeter accuracy:	± 5 % (when used with neutral)
Internal-temperature sensor:	Yes
Wi-Fi
Protocol:	802.11 b/g/n/ax
RF band:	2401 - 2483 МHz
Max. RF power:	< 20 dBm
Range:	Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
Bluetooth
Protocol:	5.0
RF band:	2402 - 2480 MHz
Max. RF power:	< 4 dBm
Range:	Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)
ZigBee
Protocol:	802.15.4
Zigbee repeater:	Yes
RF bands:	2400 to 2483.5 MHz
Max. RF power:	< 20 dBm
Range:	Up to 100 m / 328 ft indoors and 300 meters / 984 ft outdoors (Depends on local conditions)
Microcontroller unit
CPU:	ESP-Shelly-C68F STM32 G051
Clock frequency:	2ESP-Shelly-C68F: 40 Mhz
Flash:	8 MB
Firmware capabilities
Schedules:	20
Webhooks (URL actions):	20 with 5 URLs per hook…
Scripting:	Yes
MQTT:	Yes