Shelly Duo GU10 WW/CW Smart Lightbulb

The Shelly Duo GU10 WW/CW Smart Lightbulb represents a sophisticated approach to modern lighting control, combining intelligent features with practical design. This smart bulb eliminates the need for additional hubs or controllers while delivering precise lighting customisation through its dual white light capabilities. Engineered for seamless integration into existing smart home ecosystems, it offers both warm white and cool white temperature ranges to create the perfect ambiance for any occasion. With its matte finish and compact GU10 form factor, this bulb blends discreetly into various lighting fixtures while providing robust performance. The device maintains full functionality even during internet outages through local network control, ensuring reliable operation when you need it most. Advanced scheduling features allow for automated lighting patterns that can synchronise with sunrise and sunset times, helping to create natural lighting transitions throughout the day while optimising energy usage.

Technical Specifications

• Power Rating: 5W for both white light modes
• Socket Type: Standard GU10 fitting
• Power Supply: 100-240V~, 50/60 Hz compatibility
• Brightness: Up to 400 lumens output
• Colour Temperature: Warm white and cool white spectrum
• Beam Angle: 120° dispersion pattern
• Dimming Capability: Full-range brightness control
• Protection Class: IP20 rated for indoor use
• Operational Temperature: -20°C to +40°C range
• Device Consumption: Less than 1.5W when switched off
• Wireless Protocol: 802.11 b/g/n Wi-Fi standard
• RF Band: 2400 – 2484 MHz frequency
• Lifespan: 30,000 hours operational lifetime
• Dimensions: 50 x 73 mm compact design

Key Features

• Hub-Free Operation: Direct Wi-Fi connectivity eliminates the need for additional hardware
• Dual White Modes: Switch between warm white and cool white colour temperatures
• Advanced Dimming: Smooth brightness adjustment from 0-100%
• Multi-Platform Compatibility: Works with Android, iOS, Amazon Alexa, and Google Assistant
• Local Network Control: Maintains functionality without internet connection
• Automation Integration: Supports MQTT, CoAP, and REST API protocols
• Energy Monitoring: Built-in power measurement capabilities
• Scheduling Flexibility: Weekly programming with sunrise/sunset synchronisation
• Universal Voltage: Compatible with 110V and 220V power systems

Use Cases

This versatile smart bulb excels in residential settings where precise lighting control enhances daily living. Homeowners can programme morning wake-up routines with gradually increasing cool white light and transition to warm white for evening relaxation. The scheduling feature proves invaluable for security purposes, automatically illuminating spaces during absences to simulate occupancy. Commercial environments benefit from the consistent colour temperature maintenance across multiple fixtures, while developers appreciate the open protocol support for custom automation projects. The local control capability ensures critical lighting functions remain operational regardless of internet connectivity, making it suitable for essential lighting applications where reliability is paramount.