Shelly 2L Gen3
Shelly · 2L Gen3
The Shelly 2L Gen3 is a dual smart relay designed to automate two independent electrical circuits without needing a neutral wire in the installation. That makes it especially appealing for older homes where neutral is not available at the switch boxes. Thanks to its two independent channels, it lets you control two lights or lighting groups from the Shelly app, Home Assistant, voice assistants, or advanced automations. The third generation improves stability, performance, and internal capabilities compared with previous generations. The device works over WiFi and also includes Bluetooth to make initial setup and additional integration features easier. It also supports fully local control without having to rely on the cloud. The Shelly 2L Gen3 is compatible with MQTT, Webhooks, and local automations, making it a very popular choice within the Home Assistant ecosystem. Depending on the type of LED load used, it may require a Shelly Bypass.
✓ Pros
- Control of two independent circuits
- No neutral wire required
- Compatible with Home Assistant
- Local control without cloud
- Compatible with MQTT
- Built-in WiFi and Bluetooth
- Ideal for older installations
✗ Cons
- May require a Shelly Bypass
- Does not use Zigbee
- Advanced setup for some installations
- Not currently compatible with Matter
- Limited space in some electrical boxes
Compatibility
Specifications
| Model | Shelly 2L Gen3 |
| Type | dual smart relay without neutral |
| Channels | 2 |
| Connectivity | WiFi 2.4GHz and Bluetooth |
| Installation | behind switches |
| Requires neutral | no |
| Compatibility | Home Assistant, Alexa, and Google Home |
| Protocols | MQTT, HTTP, Webhooks |
| Use | lighting and automation |
| Local control | yes |
| Power supply | Corriente eléctrica |
| Neutral wire required | No |
Related content
Watch on YouTube
Domótica sin Neutro con Shelly 1L y 2L Gen 3 e Integración en Home Assistant
¿Te imaginas convertir cualquier interruptor de tu casa en inteligente sin hacer obras y sin pasar cables nuevos? Si vives en una casa con algunos años, lo más probable es que en tus cajas de interruptores no encuentres el famoso cable neutro. Hasta hace poco, esto era una pesadilla para los entusiastas de la domótica, pero los nuevos Shelly 1L Gen 3 y Shelly 2L Gen 3 han llegado para cambiar las reglas del juego. En este artículo, vamos a desgranar cómo funcionan estos relés, cómo instalarlos paso a paso y por qué son la solución definitiva para modernizar tu hogar.
Read review