Shelly 1L Gen3
Shelly · 1L Gen3
The Shelly 1L Gen3 is a compact smart relay designed specifically for installations where there is no neutral wire behind the switch. This makes it ideal for upgrading older electrical systems without having to rewire them. This device lets you control lights and automations via WiFi, mobile app, voice assistants, or home automation systems such as Home Assistant. The third generation improves hardware performance, connection stability, and automation capabilities compared with previous models. The Shelly 1L Gen3 works locally without relying on the cloud and offers support for MQTT, Webhooks, and internal scripts. It also supports advanced integration with Home Assistant through the official Shelly integration. Depending on the connected load, it may require the Shelly Bypass to ensure stable operation with low-power LED fixtures.
✓ Pros
- No neutral wire required
- Very compact
- Compatible with Home Assistant
- Local control without the cloud
- Compatible with MQTT
- Built-in WiFi and Bluetooth
- Ideal for older installations
✗ Cons
- May require Shelly Bypass
- Does not use Zigbee
- Setup is somewhat advanced for new users
- Not compatible with Matter at this time
- Only for compatible loads
Compatibility
Specifications
| Model | Shelly 1L Gen3 |
| Type | smart relay without neutral |
| Connectivity | WiFi 2.4GHz and Bluetooth |
| Installation | behind switches |
| Neutral required | 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
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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.
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