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Shelly 2L Gen3 – Wi-Fi Smart Relay (No Neutral Required, 2 Channels)
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Shelly 2L Gen3 – Wi-Fi Smart Relay (No Neutral Required, 2 Channels)

Original price was: £34.99.Current price is: £32.99.

1 in stock

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Overview

Shelly 2L Gen3 is a compact dual-channel Wi-Fi smart relay designed for lighting control in installations without a neutral wire. It operates on 220–240 V AC and includes a Shelly Bypass for 1L/2L, which is required for stable operation on output O1 in no-neutral setups.

The device allows independent control of two lighting circuits, making it ideal for retrofitting in existing electrical installations where only a live wire is available. Powered by the Shelly Gen3 ESP processor with 8 MB flash memory, Shelly 2L Gen3 delivers fast response times, improved reliability, and advanced integration support.

With Wi-Fi connectivity, Bluetooth onboarding, and the ability to act as a Bluetooth gateway for Shelly BLU devices, the device supports local control, cloud automations, scripting, and integration with platforms such as Home Assistant and Alexa.

Key features

  • Dual-channel Wi-Fi smart relay for no-neutral installations
  • Designed for lighting circuits without a neutral wire
  • Includes Shelly Bypass for 1L/2L (required for O1 output)
  • Independent control of two lighting circuits
  • Output ratings up to 200 W on O1 and 700 W on O2
  • Wi-Fi and Bluetooth connectivity
  • Gen3 ESP processor with 8 MB flash memory
  • Acts as a Bluetooth gateway for Shelly BLU devices
  • Supports schedules, scenes, and local actions
  • Supports scripting (mJS), MQTT, WebSocket, HTTPS, and MQTTS
  • Internal temperature sensor with overheating protection
  • Wi-Fi range extender functionality
  • No hub required – works with Shelly Smart Control app, Home Assistant, Alexa, and other platforms
  • Matter support planned via future firmware update

Product information

Use cases
  • Dual Lighting Circuit Control
  • Control two independent lighting circuits from a single in-wall smart relay module.
  • Retrofit Smart Lighting
  • Add smart lighting control to older electrical installations that lack a neutral wire.
  • Smart Home Automation
  • Trigger lighting scenes, schedules, or automation routines using local or cloud control platforms.
Technical specifications
Power & Switching
Power Supply
220–240 V AC, 50 Hz
Neutral Required
No (Shelly Bypass required for load on O1)
Max Switching Voltage
240 V AC
Max Switching Power (O1)
200 W
Max Switching Power (O2)
700 W
Power Consumption
< 1.2 W
Load & Channel Information
Channels
2
Bypass Requirement (O1)
Shelly Bypass required (included)
Bypass Requirement (O2)
Not required
Connectivity – Wi-Fi
Protocol
802.11 b/g/n (2.4 GHz)
RF Band
2401–2495 MHz
Range
Up to 30 m indoors, up to 50 m outdoors
Connectivity – Bluetooth
Protocol
Bluetooth 4.2
Range
Up to 10 m indoors, up to 30 m outdoors
Features
Internal Temperature Protection
Yes
Overload Protection
No
Custom Scripts (mJS)
Yes
HTTP / HTTPS Webhooks
Yes
Environmental
Operating Temperature
−20 °C to 40 °C
Humidity
30–70% RH
Physical
Dimensions
37 × 42 × 16 mm
Mounting
In-wall (behind switch or in wall box)
What’s included
  • Shelly 2L Gen3
  • Shelly Bypass for 1L / 2L
  • Quick start guide

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