Shelly Wave Dimmer EU LR smart dimmer controller — 2-channel, no neutral, 220–240V, LED up to 150W, incandescent up to 200W, 864–868.4 MHz

Shelly Wave Dimmer EU LR is a wireless indoor dimmer controller offering two independent channels for lighting control. It operates on 220–240 V AC, 50 Hz, and supports dimming of LED loads up to 150 W and incandescent/halogen loads up to 200 W. The device works without a neutral wire, has SW1 and SW2 inputs, and communicates over 864.0–868.4 MHz; it is controlled via mobile app or remote and comes in a compact plastic housing designed for easy installation.

Advantages

The dimmer provides two-channel control in a compact module that does not require a neutral wire, reducing installation complexity in older wiring systems. It supports a wide range of lamps including LEDs and incandescent/halogen, has low standby power consumption (<0.3 W), and includes safety protections against overheating, overvoltage and overload. Compatibility with popular smart home platforms enables integration into existing automation setups.

Suitable for

• Independent dimming of two indoor lighting circuits
• Retrofitting smart control where no neutral wire is available
• Integration with Home Assistant, Fibaro HC3, Homey, SmartThings and similar hubs
• Mobile app or remote-operated lighting scenes

Key specifications

• Control type: Wireless (864.0–868.4 MHz)
• Channels: 2 dimmer outputs
• Supply voltage: 220–240 V AC, 50 Hz
• Output capacity: LED up to 150 W; incandescent/halogen up to 200 W
• Standby power consumption: <0.3 W
• Inputs: SW1, SW2
• Operating temperature range: -20 to 40 °C
• Operating humidity: 30–70% relative humidity
• Dimensions: 42 mm (W) × 37 mm (H) × 16 mm (D)
• Weight: 25 g
• Housing: Plastic

How to use

Install the Shelly Wave Dimmer EU LR inside a suitable junction box or mounting location according to local wiring regulations, connecting line and the two load outputs (L1, L2) and using the SW1/SW2 inputs for wall switch control if required. After wiring, pair the device with the mobile app or remote control via the supported wireless frequency and configure channels, scenes and integration with your smart home platform. Verify lamp types and total load per channel do not exceed the specified output capacity before switching on mains power.

Recommendations

Use the dimmer indoors only and avoid exposure to temperatures or humidity outside the specified ranges. Distribute loads so each channel remains within its rated power; for LED loads ensure compatibility with dimmable drivers. Integrate with supported smart home controllers for advanced automation and use the app to monitor and adjust power settings.