Shelly Duo Bulb E27 Gen3 – Smart light bulb, dimmable, Wi-Fi, Bluetooth

The Shelly Duo Bulb E27 Gen3 is a dimmable LED bulb from the manufacturer, featuring adjustable white color temperature (2700K–6500K), Wi-Fi, and Bluetooth connectivity. It can be screwed into a standard E27 socket, making it easy to replace any existing bulb while instantly adding smart functionality to your lighting. It is ideal for home use, offices, or small commercial environments where flexible control of brightness and color temperature is required, either via an app or automation.

One of the key advantages of the bulb is that it works without a hub, connecting directly via Wi-Fi, but it can also be controlled via Bluetooth using Shelly BLU wireless switches or remotes. As part of the Shelly ecosystem, it offers advanced automation features, including scheduling, scenes, and even custom script-based operation. Thanks to the built-in web interface, it can also be fully configured locally.

The Gen3 version adds further benefits, as it can function as a Wi-Fi range extender and a BLE gateway, making it not just a lighting device but an active part of your smart home network. With energy monitoring, event logging, and advanced APIs, the product integrates especially well into advanced or DIY-based systems.

About the Shelly Brand

Shelly is one of the best-known smart home brands, primarily recognized for its Wi-Fi-based, hub-free devices. Its products are easy to integrate into systems such as Home Assistant, Google Home, Amazon Alexa, or SmartThings. Shelly devices stand out for their advanced automation capabilities, local control, and open integration options (e.g., MQTT, REST API).

Main Product Features

• Dimmable LED bulb: Adjustable brightness and color temperature (2700K–6500K).
• Wi-Fi + Bluetooth connectivity: Works without a hub and can also be controlled via BLE devices.
• Wi-Fi range extender: Extends the network for other Shelly devices.
• BLE gateway function: Enables communication between Bluetooth and Wi-Fi devices.
• Advanced automation: Supports schedules, scenes, and script-based operation.
• Energy monitoring: Real-time power consumption display.
• Web interface: Local configuration and control via browser.
• Compatibility: Wide integration with third-party systems.

Smart Home Protocols and Platform Compatibility

• Protocols: Wi-Fi (802.11 b/g/n), Bluetooth 4.2 (BLE)
• Multi-protocol operation: Simultaneous use of Wi-Fi and Bluetooth
• Native platform: Shelly Smart Control app
• Cloud platforms: Google Home, Amazon Alexa, Samsung SmartThings
• Third-party systems: Home Assistant, MQTT, REST API support
• Local control: Works on local network without internet
• Voice control: Supports Alexa and Google Assistant

Smart Features

• Remote control: Adjust brightness and color temperature via app.
• Scheduling: Weekly and complex time-based automations.
• Auto on/off: Automatic switching based on schedules.
• Scenes and automations: For example sunrise simulation or evening ambient lighting.
• Event log: Detailed operation history.
• Night mode: Adjustable night brightness and color temperature.
• Transition settings: Control the speed of light changes.
• Webhook support: Event-based integration with external systems.
• Local automation: Operates within Wi-Fi network without cloud.
• Script support: Create custom logic for advanced users.
• Dynamic components: Create virtual and BTHome devices.

Technical Specifications

• Product name: Shelly Duo Bulb E27 Gen3
• Model: S3BL-D010009AEU
• Socket: E27
• Power supply: 220–240 V AC, 50/60 Hz
• Power consumption: 8.5 W
• Energy monitoring: Yes (W)
• Standby consumption: < 0.5 W (BLE), < 1 W (Wi-Fi)
• Luminous flux: max. 806 lm
• Color temperature: 2700K – 6500K
• Dimming: Yes
• Beam angle: 200°
• Light source type: LED (SMT)
• Lifetime: approx. 15,000 hours
• Protection rating: IP20 (indoor use)
• Housing: Matte PC cover
• Size: A60 (60 × 110 mm)
• Weight: 34 g
• Operating temperature: -25°C to +40°C
• Humidity: 30–70% RH
• Max installation altitude: 2000 m
• Wi-Fi: 802.11 b/g/n, 2.4 GHz
• Wi-Fi range: up to 50 m (outdoor), 30 m (indoor)
• Bluetooth: 4.2 (BLE)
• Bluetooth range: up to 30 m (outdoor), 10 m (indoor)
• CPU: Shelly ESP32-C3, 40 MHz
• RAM: 400 KB
• Flash memory: 8 MB
• Schedules: up to 20
• Webhook support: 20 (max. 5 URLs per hook)
• MQTT support: Yes
• API: Yes

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