Shelly Dimmer Gen4 Wi-Fi Zigbee Matter Smart Light Dimmer Controller
Transform your lighting with the Shelly Dimmer Gen4, a cutting-edge single-channel smart dimming controller that brings multi-protocol connectivity to your home or business. Featuring Wi-Fi, Bluetooth, Zigbee, and Matter support, this compact dimmer installs behind your existing wall switches and works with or without a neutral wire, making it perfect for retrofitting any lighting setup. Control dimmable LEDs, incandescent, halogen, and electronic transformers remotely via the Shelly app, voice assistants, or integrated smart home platforms including Home Assistant, Amazon Alexa, Google Home, Apple HomeKit, and Samsung SmartThings.
Why Choose the Shelly Dimmer Gen4?
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Multi-Protocol Connectivity: Choose between Wi-Fi, Bluetooth, Zigbee, or Matter to suit your smart home ecosystem—no hub required for Wi-Fi mode
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No Neutral Wire Required: Unique flexibility for installations without a neutral wire (bypass required for loads under 20W)
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Matter-Certified: Seamlessly integrates with all major smart home platforms in one unified standard
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Compact Design: Fits behind standard wall switches (38.5 × 43.5 × 17mm) without modification
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Advanced Dimming Control: Automatic calibration, gamma correction, adjustable fade time and transition duration for smooth, flicker-free dimming
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Power Metering: Monitor voltage, current, and energy consumption when used with neutral wire
Versatile Light Compatibility
The Shelly Dimmer Gen4 supports a wide range of dimmable lighting technologies, making it ideal for home theatres, conference rooms, restaurants, retail spaces, and residential installations:
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Dimmable LED Lamps: Up to 150W
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Incandescent Bulbs: Up to 200W
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Halogen Lamps: Up to 200W
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Iron-Core Transformers with low-voltage incandescent lamps: Up to 200VA
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Dimmable Electronic Transformers: Up to 200W
Smart Automation & Scheduling
Create intelligent lighting scenes tailored to your lifestyle. Set schedules to automatically adjust brightness throughout the day, sync with sunrise and sunset times, activate night mode for reduced brightness during nighttime hours, or trigger lights based on motion detection when paired with Shelly BLU Motion sensors. Perfect for hallways, staircases, offices, and entertainment spaces.
Easy Installation & Control
Designed for professional installers and DIY enthusiasts alike, the Dimmer Gen4 features minimal wiring with upgraded screw terminals (0.5 to 4mm² conductor support). Control your lights through:
- Free Shelly Smart Control app (iOS and Android)
- Voice commands via Alexa, Google Assistant, or Siri
- Embedded web interface for local configuration
- HTTP API, MQTT, WebSockets, and custom integrations
- Existing physical wall switches (works as a trailing-edge dimmer)
What's in the Box
- Shelly Dimmer Gen4 smart dimming controller
- User guide and safety instructions
Full Specifications
| Model |
S4DM-0A101WWL |
| Connectivity |
Wi-Fi, Bluetooth, Zigbee, Matter-certified |
| Dimming Type |
Trailing-edge (with or without neutral wire) |
| Supported Loads |
Dimmable LED (150W max), Incandescent/Halogen (200W max), Iron-core transformers (200VA max), Electronic transformers (200W max) |
| Neutral Wire |
Optional (bypass required for loads under 20W without neutral) |
| Power Metering |
Yes (voltage, current, consumption when used with neutral) |
| Dimensions (H × W × D) |
38.5 × 43.5 × 17mm (1.52 × 1.71 × 0.67 inches) |
| Weight |
24.3g (0.86 oz) |
| Conductor Cross Section |
0.5 to 4mm² (20 to 11 AWG) |
| Screw Terminal Max Torque |
0.4Nm (3.5 lbin) |
| Smart Features |
Automatic calibration, gamma correction (0.4-4.0 range), adjustable fade time, transition duration, night mode, schedules |
| Integrations |
Home Assistant, Amazon Alexa, Google Home, Apple HomeKit, Samsung SmartThings, HTTP API, MQTT, WebSockets, Webhooks |
| Warranty |
3 years manufacturer warranty |
Specifications are sourced from the manufacturer product page and may be updated.
