The Shelly 1L Gen3 is the WiFi smart switch designed for installations without a neutral wire, which is common in older homes. It converts any light point into a smart light using only the live wire, without renovations. It includes the Shelly Bypass 1L/2L as standard, which is necessary to control low-power LED bulbs (from 5W), so you won't need to buy anything else. With the new 8 MB Gen3 chip and Matter compatibility, it offers fast, local, and future-proof automations, integrating with major smart home ecosystems. Its internal temperature sensor protects the installation against overheating, all in a compact format that fits behind the switch.
Why choose the Shelly 1L Gen3?
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No neutral wire: ideal for renovations and older homes where there is no neutral in the switch box.
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Bypass included: controls LED bulbs over 5W with no additional purchases.
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Matter-ready: universal compatibility with your smart home.
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No HUB or subscriptions: works on your 2.4 GHz WiFi network and Bluetooth.
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Compatible with everything: Alexa, Google Home, Home Assistant, and apps for iOS and Android.
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Designed for integrators: documented HTTP API, MQTT(s), WebSockets, Webhooks, and mJS scripting.
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Integrated protection: internal temperature sensor against overheating.
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3-year manufacturer's warranty.
Key features
- 1-channel WiFi and Bluetooth smart switch
- No neutral wire required
- Includes Shelly Bypass 1L/2L
- No HUB required
- WiFi range extender and Bluetooth (BLE) gateway
- Compatible with Alexa and Google Home
- App for iOS and Android
Technical Specifications
| CPU |
ESP-Shelly-C38F |
| Flash |
8 MB |
| Power supply |
220 - 240 VAC |
| Power consumption |
< 1.2W |
| Max. switching voltage |
240 V~ |
| Max. switching power |
200 W |
| External protection |
10 A |
| Internal temperature sensor |
Yes |
| Communication |
WiFi 2.4 GHz
Bluetooth 4.2 |
| Mounting |
Wall |
| Material |
Plastic |
| Operating temperature |
-20°C to 40°C |
| Humidity |
30% to 70% RH |
| Range |
Up to 10 m indoors and 30 m outdoors |
| WiFi range extender |
Yes |
| BLE gateway |
Yes |
| Scripting (mJS) |
Yes |
| MQTT |
Yes |
| Encryption |
Yes |
| Measurements |
37 x 42 x 16 mm |
| Weight |
24 g |
