Shelly Dimmer 2 WiFi Operated Smart Relay (Pair)

The Shelly Dimmer 2 (Pair) represents a sophisticated smart lighting solution designed for seamless integration into modern homes. This pair of intelligent dimmers enables precise control over lighting levels while maintaining compatibility with existing switch configurations. Engineered for both retrofit installations and new builds, these devices bridge the gap between traditional lighting controls and contemporary smart home automation.

Each unit in the pair functions as an independent Wi-Fi enabled dimmer that can be controlled remotely through various interfaces. The product's design focuses on maintaining the aesthetic appeal of existing switches while adding advanced dimming capabilities and energy monitoring features. Installation flexibility allows these dimmers to work with various lighting types including incandescent, halogen, and LED loads, making them suitable for diverse residential and commercial applications.

Technical Specifications

• Model Number: SHELLY-DIMMER-2-2
• Input Voltage: 110-240V AC, 50/60Hz
• Maximum Load: 150W LED/200W incandescent per device
• Wireless Connectivity: Wi-Fi 2.4GHz 802.11b/g/n
• Operating Temperature: -20°C to 60°C
• Dimming Range: 5-100%
• Enclosure Rating: IP20
• Dimensions: 42mm x 37mm x 17mm per unit

Key Features

• Dual Installation Options: Compatible with both neutral and no-neutral wiring configurations, with support for minimal load requirements or use with Shelly Bypass accessory
• Energy Monitoring: Real-time power consumption tracking with historical data analysis
• Multi-Platform Control: Compatible with Amazon Alexa and Google Assistant for voice control integration
• Advanced Scheduling: Programme automatic on/off cycles and lighting scenes based on time, temperature, or other environmental parameters
• Local and Remote Access: Control via embedded web interface or cloud-based mobile application from anywhere with internet connectivity
• Over-the-Air Updates: Regular firmware enhancements delivered automatically to maintain optimal performance

Installation and Use Cases

Before installation, ensure the mains power is disconnected at the circuit breaker. The device connects directly to the power grid and installs behind existing switches or power sockets, following the wiring diagram appropriate for your specific configuration. Multiple installation scenarios are supported including standard grids with neutral connection, grids without neutral requiring minimal 10W consumption, and configurations utilising the Shelly Bypass accessory for no-neutral installations with no minimum load requirement.

Typical applications include residential lighting control in living rooms and bedrooms where adjustable lighting ambience is desired, commercial spaces requiring scheduled lighting operations, and hospitality environments where centralised light management enhances guest experience. The pair configuration enables synchronised control of multiple lighting circuits while maintaining individual adjustability for each circuit. Integration with smart home ecosystems allows for creating complex automation scenarios where lighting responds to other smart devices or environmental conditions.