Shelly 2L Gen3 is a powerful two-channel smart switch built for advanced lighting control—even in installations without a neutral wire. Perfect for retrofit projects, it works with the Shelly Bypass for 1L/2L (recommended for Output 1) to manage low-wattage loads.
It features independent control of two outputs, with support for loads up to 200W on Output 1 and 700W on Output 2. With built-in Wi-Fi and Bluetooth, there’s no need for a hub—just connect and control from the Shelly Smart Control app, voice assistants, or your preferred automation platform.
The 2L Gen3 also functions as a Wi-Fi repeater and Bluetooth gateway, enhancing your network coverage. KNXnet/IP compatibility and local scripting support make it ideal for both smart homes and professional automation projects.
Key Features
Two Independent Channels – Control two circuits separately
No Neutral Wire Required – Perfect for older or retrofit installations
Bypass Support – Use Shelly Bypass 1L/2L to manage low-power loads on Output 1
Supports up to 700W – Output 2 handles heavier loads
Smart Control – Automate with schedules, scenes, and local actions
Advanced Protocols – Scripting, HTTPS, MQTTS, WebSockets, and KNXnet/IP
No Hub Required – Works via Wi-Fi, Bluetooth, or voice control
Wi-Fi Repeater + Bluetooth Gateway – Strengthens your home automation network
Built-in Safety – Overheat protection via internal temperature sensor
Ideal For
Multi-light or multi-circuit retrofits
Homes and apartments without neutral wiring
Power users and integrators who need flexibility and platform support
Installers looking to simplify wiring while retaining advanced features
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Quantity |
Value |
|---|---|
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Physical |
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Size (HxWxD): |
37x42x16 ±0.5 mm / 1.46x1.65x0.63 ±0.02 in |
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Weight: |
28 g / 1 oz |
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Screw terminals max torque: |
0.4 Nm / 3.5 lbin |
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Conductor cross section: |
0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, and bootlace ferrules) |
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Conductor stripped length: |
6 to 7 mm / 0.24 to 0.24 in |
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Mounting: |
In-wall |
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Shell material: |
Plastic |
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Shell color: |
Cyan |
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Terminal color: |
Black |
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Environmental |
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Ambient working temperature: |
-20 °C to 40 °C / -5 °F to 105 °F |
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Storage temperature: |
10°C to 40 °C |
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Humidity: |
30 % to 70 % RH |
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Max. altitude: |
2000 m / 6562 ft |
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Electrical |
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Power supply: |
220-240 V~, 50Hz (Shelly Bypass is required for the load at O1) |
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Shelly Bypass included |
Yes |
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Power consumption: |
< 1.2 W |
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Neutral not needed: |
Yes (Shelly Bypass is required for the load at O1) |
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Min. load without neutral and without a Bypass: |
No (Shelly Bypass for 1L/2L is required for the load at O1), for all LED lights. |
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Output circuits ratings |
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Max. switching voltage: |
240 V~ |
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Max. switching power: |
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|
Sensors, meters |
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Internal-temperature sensor: |
Yes |
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Radio |
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Wi-Fi |
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Protocol: |
802.11 b/g/n |
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RF band: |
2401 - 2495 МHz |
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Max. RF power: |
< 20 dBm |
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Range: |
Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
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Bluetooth |
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Protocol: |
4.2 |
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RF band: |
2400 - 2483.5 MHz |
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Max. RF power: |
< 4 dBm |
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Range: |
Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
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Microcontroller unit |
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CPU: |
ESP-Shelly-C38F |
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Clock frequency: |
160 Mhz |
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RAM: |
512 KB |
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Flash: |
8 MB |
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Firmware capabilities |
|
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Schedules: |
20 |
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Webhooks (URL actions): |
20 with 5 URLs per hook |
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Scripting: |
Yes |
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MQTT: |
Yes |
