Shelly 1L Gen3 is a compact, Wi-Fi-based smart relay that offers an ideal solution for the subsequent automation and smartening of lighting systems where there is no neutral wire in the wall socket, only phase wire. This is especially useful in older buildings, where traditional smart relays can be difficult to install. The Shelly 1L Gen3 allows you to remotely control lighting, set timers and create automation scenes without the need for a neutral wire.

The installation of the device is simple and fast, it can be done in up to 10 minutes. The Shelly 1L Gen3 is specifically designed to fit behind standard wall switches or in other tight spaces, making it ideal for retrofit installations. With built-in Wi-Fi and Bluetooth connections, it can be easily integrated into existing smart home systems and enables remote access and control.

Main product features:

- Perfect for retrofitting! No need for a zero driver. Lighting or other devices can be controlled and supplied with electricity only with a phase wire, without having to connect the device to zero.
- Supported load types:
- Conventional light bulbs
- LED lighting
- For light sources that do not use a step-down transformer (for low-voltage lighting).
- Minimum bulb power: A Bypass 1L/2L Gen3 unit must be installed next to the device next to the LED lamps, so it is possible to control bulbs with a power greater than 5W. In the case of traditional bulbs, it is not necessary to install the ByPass.
- Wi-Fi connection: Shelly 1L Gen3 connects to your home Wi-Fi network, allowing remote control via the Shelly mobile app or other smart home platforms.
- Remote control: With the Shelly application, you can control the connected device or device from a smartphone or tablet from anywhere with an Internet connection.
- Voice control: When connected to voice assistants such as Amazon Alexa or Google Assistant, it can also be controlled with voice commands.
- Timing and Automation: Shelly 1L Gen3 supports timing and automation, so you can create routine tasks and set timers, for example to automatically turn lights on and off at specific times.
- Compatibility Designed and tested to be compatible with many different types of lighting. It works in the voltage range of 220-240 VAC.
- Compact design The Shelly 1L Gen3 has a compact size, so it can easily fit behind light switches or in mounting boxes without taking up much space.
- Protection Internal temperature sensor for protection against overheating.
- Local and remote access Devices can be controlled locally within the same Wi-Fi network or remotely if you are not at home.
- OTA Updates Shelly devices regularly receive OTA (over-the-air) firmware updates to expand functions and improve security.
- Compatibility with smart home systems
- Shelly 1L Gen3 can be compatible with several smart home systems, such as MQTT, Home Assistant, etc., so it serves as a flexible solution for building a smart home.
- What's new compared to the old Shelly 1L: It includes all the new functions of the new Shelly devices:
- Scripting options
- HTTPS and MQTTS support
- Incoming and outgoing WebSocket support

Smart home protocols and platform compatibility

- Supported protocols: Wi-Fi (802.11 b/g/n), Bluetooth 4.2
- Bluetooth Gateway function: Able to receive and transmit signals from Shelly BLE devices (remote controls and sensors)
- Factory platform: Shelly Smart Control App (Android, iOS)
- Cloud platform integrations: Amazon Alexa, Google Assistant
- Third-party platforms: Home Assistant, OpenHAB, Domoticz, ioBroker, Node-RED, MQTT, REST API, Webhook, HTTPS, UDP
- Voice control: Supports Amazon Alexa and Google Assistant services

Smart functions

- Remote on and off
- Query status remotely
- Setting timings and automations: up to 20 timings can be stored in the device's memory.
- Create scenes with other Shelly tools
- Local and cloud-based operation
- Support for firmware updates
- Bluetooth Gateway function for BLE devices: can be controlled remotely with Shelly's Bluetooth remote controls and Bluetooth wireless wall switches

Electrical functions

- Supply voltage: 220-240V AC, 50/60Hz
- Maximum load: 200W (on O1 output) @ 240V AC
- Switch input: 2 inputs, compatible with max. 2 push-button or two-position switches. It cannot be used with alternative and crossover switches.
- Voltage-free (dry contact) switching: Not supported
- Consumption measurement: Not supported
- Auto-off / Auto-on function: Supported

Other features

- Size: compact design, fits behind standard wall switches
- Installation: simple and quick installation in a wall outlet
- Bypass required: Shelly Bypass 1L/2L Gen3 must be used.
- DIY compatibility: Open API and MQTT support,