Shelly Dimmer Gen4 US UL-Certified

The Shelly Dimmer Gen4 US is a smart in-wall dimming controller designed for the U.S. market. It fits behind existing switches and adds full smart control to compatible dimmable lights without requiring a change to your existing setup.

Key Features

• Multiprotocol connectivity: Supports Wi-Fi, Bluetooth, Zigbee, and Matter.
• Matter compatible: Integrates with Matter-supported smart home ecosystems.
• Neutral wire required: Designed for standard 120 VAC U.S. installations with neutral.
• Smart dimming control: Adjust brightness remotely through the Shelly app, local web interface, supported platforms, voice assistants, or automation systems.
• Transition duration: Fine-tune fade time when lights turn on or off.
• Power measurement: Displays voltage, current, and power consumption.
• Flexible switch control: Supports one-button and dual-button dimming control.
• Local and cloud control: Works locally over Wi-Fi or through supported cloud services.
• Advanced automation: Supports schedules, webhooks, scripting, MQTT, and local actions.
• KNXnet/IP support: Compatible with KNXnet/IP communication.
• Safety protections: Includes overheating, overpower, overvoltage, undervoltage, and overcurrent protection.

Supported Load Types

• Dimmable LED lamps: up to 150 W
• Incandescent bulbs: up to 200 W
• Halogen lamps: up to 200 W
• Iron-core transformers with low-voltage incandescent lamps: up to 200 VA
• Dimmable electronic transformers: up to 200 W

Device Information

• Device name: Shelly Dimmer Gen4 US
• Model: S4DM-0A102US
• Power supply: 120 VAC, 60 Hz
• Maximum output power: 200 W
• Maximum current: 1.7 A
• Power consumption: < 1.5 W
• Neutral required: Yes
• Mounting: In-wall
• Dimensions: 38.5 × 43.5 × 17 mm / 1.52 × 1.71 × 0.67 in
• Weight: 24.3 g / 0.86 oz

Connectivity

• Wi-Fi 802.11 b/g/n/ax
• Bluetooth 5.0
• Zigbee 802.15.4
• Matter

Compatible Smart Home Platforms

• Home Assistant
• Amazon Alexa
• Google Home
• Apple HomeKit through Matter
• Samsung SmartThings

Common Use Cases

• Retrofit existing dimmable lighting without replacing your current switches.
• Create lighting schedules that automatically adjust brightness throughout the day.
• Use night mode for reduced brightness during nighttime hours.
• Control lights locally, remotely, or through third-party smart home systems.
• Use with residential, apartment, hotel, small commercial, and light office applications.