WiFi lighting controller Shelly Shelly_1L_Gen3 — 1-channel non-neutral module, 220–240V, Wi‑Fi/Bluetooth, 802.11 b/g/n

Shelly_1L_Gen3 is a compact 1-channel WiFi lighting controller designed for single-circuit installations without a neutral wire. It supports 220–240 V AC mains and provides wireless control via Wi‑Fi (802.11 b/g/n) and Bluetooth. The module enables remote operation, timed switching tied to sunrise/sunset, script execution and webhook actions while drawing low power and offering overheat protection.

Advantages

The device is small and lightweight, suitable for installation behind switches or inside junction boxes. It offers multiple connectivity options (Wi‑Fi and Bluetooth) for flexible setup and remote control. Intelligent on/off, scheduling for sunrise/sunset, script support and webhooks allow integration with home automation systems. Built-in overheat protection and low maximum power consumption (1.2 W) make it energy-efficient and safe for continuous operation.

Suitable for

• Retrofitting conventional single-circuit lighting without a neutral wire
• Remote control of lights via mobile app or home automation platforms
• Scheduling lights based on sunrise/sunset times
• Integrating lighting with scripts and webhook-based automations

Key specifications

• Channels: 1
• Supply voltage: 220–240 V AC
• AC input frequency: 50 Hz
• Wireless: Wi‑Fi 802.11 b/g/n and Bluetooth
• Maximum power consumption: 1.2 W
• Operating temperature range: -20 to 40 °C
• Operating relative humidity: 30–70%
• Housing material: Plastic
• Overheat protection: Yes
• Dimensions (H×W×D): 37 × 42 × 16 mm
• Weight: 24 g

How to use

Install the module into the electrical box or behind a wall switch following local electrical regulations and cut power before wiring. Connect the module to the single-circuit lighting line according to the manufacturer's wiring diagram for non-neutral installations. After powering, pair the device via Bluetooth or connect it to a 2.4 GHz Wi‑Fi network (802.11 b/g/n) using the Shelly app, then configure channels, schedules, scripts and webhook endpoints as needed for remote control and automation.

Recommendations

For reliable Wi‑Fi operation use a 2.4 GHz network, ensure adequate ventilation around the module to avoid heat buildup, and verify compatibility with the connected load type. If unsure about electrical connections, consult a qualified electrician.