Shelly 1L Gen3

Shelly 1L Gen3 – Smart Switch Without Neutral Wire (With Shelly Bypass Gen3)

The Shelly 1L Gen3 is a compact, next-generation smart switch designed to give you full control over your lights—even in homes where no neutral wire is available. This makes it the perfect retrofit solution for older electrical installations. Paired with the Shelly Bypass 1L/2L Gen3 (included), the device ensures smooth operation of bulbs above 5W.

With built-in Wi-Fi connectivity, local control, and optional integration with cloud platforms, you can manage your lighting anytime, anywhere, using the Shelly Smart Control app, voice assistants, or your favorite home automation hub.

Key Features

• ⚡ No Neutral Required – Perfect for retrofit projects. Operates using only a live wire (requires Shelly Bypass Gen3 for loads at O).

• 💡 Lighting Compatibility – Works with incandescent and LED lights (without step-down transformers).

• 📱 Wi-Fi Control – Manage your lights locally or remotely via the Shelly app, PC, or automation system.

• 🎙️ Voice Control – Compatible with Amazon Alexa and Google Assistant for hands-free operation.

• 📅 Automation & Scheduling – Create routines, timers, and smart schedules tailored to your lifestyle.

• 🔗 Smart Home Integration – Supports MQTT, Home Assistant, SmartThings, and Matter-ready (via firmware update).

• 🛡️ Safety Built-In – Overheating protection with internal temperature monitoring.

• 📦 Compact Design – Slim 37×42×16 mm housing fits neatly into wall boxes or behind switches.

• 🔄 Future-Proof – OTA firmware updates with support for scripting, HTTPS, MQTTS, and web sockets.

Technical Specifications

Power & Load

• Supply: 220–240V AC, 50Hz

• Max switching power: 200W

• Power consumption: <1.2W

• Protection: 10A external circuit breaker (type B or C)

Connectivity

• Wi-Fi: 802.11 b/g/n (2.4 GHz), up to 30m indoors / 50m outdoors

• Bluetooth 4.2 (up to 10m indoors)

Interfaces

• Inputs: 1 switch/button (S), power input (L)

• Outputs: 1 relay (O), switch output (Sx)

• LED indicator for device/network status

• One multifunction button for AP mode, Bluetooth, and factory reset

Safety & Environment

• Overheating protection: Yes

• Operating temp: -20 °C to 40 °C

• Humidity: 30–70% RH

• Compact size: 37×42×16 mm

• Weight: 24 g

Smart Integrations

• Amazon Alexa → Toggle Controller

• Google Home → On/Off

• Samsung SmartThings → Switch

• MQTT / Home Assistant / HTTP / WebSockets → For advanced users and custom automation setups

Applications

• 🏠 Residential: Smart control of lights and appliances in single-family homes.

• 🏢 Apartments & Hotels: Ideal for multi-dwelling units with older wiring.

• 🛍️ Small Businesses: Perfect for light commercial use in offices, restaurants, and retail.

• 🎓 Institutions: Universities, municipal buildings, and more.

✅ What’s Included:

• Shelly 1L Gen3 Smart Switch

• Shelly Bypass 1L/2L Gen3

• User manual