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Shelly Dimmer 2

Downloads ​

Manuals ​

Compliance ​

What is Shelly Dimmer 2? ​

Dimming without a neutral line ​

We developed Shelly Dimmer 2 to be able to cover all possible electrical installations all over the world. Shelly Dimmer 2 can be used in houses where the neutral line is missing and provides a full set of dimming functionalities. You can control a wide range of halogen lights, dimmable LEDs, and ferromagnetic transformers.

Features ​

  • No HUB required.
  • Dimming without a neutral line.
  • Turn ON/OFF or use the dimming function to set the brightness to your preferred intensity.
  • Integrated internal temperature sensor for overheating protection.
  • Designed to fit in most standard electrical boxes and switches.
  • It can be integrated to work with all other Shelly devices.
  • Compatible with Android, iOS, Amazon Alexa, Google Assistant, and home automation servers using MQTT, CoAP, and REST API.
  • Easily make your Arduino project live and usable in your automation project.

Specification ​

POWER
Power supply AC110–230V ±10%, 50/60Hz
SPECIAL FUNCTIONS
Device temperature protectionYes; 95°C
Overload protectionYes
Power measurementYes
DimmingYes
Operational current0.1–1.1 A
Dimmable LED50–200VA / 10W – 200W
Incandescent and halogen light sources10–220W
Working without a neutral lineYes
FEATURES
Colour changingNo
Predefined effectsYes
Channels1 Channel
Operational temperature0 to +40°C
Device power consumption< 1 W
Intelligent On/OffYes
Local and remote controlYes
Sunrise/SunsetYes
Weekly ScheduleYes
UL Listed optionNo
CONNECTIVITY
Wireless/WiFi Protocol802.11 b/g/n
Radiofrequency2400 – 2500 MHz
RangeUp to 50 m outdoors and up to 30 m indoors (depending on building materials)
DIMENSIONS
Size42mm × 36mm × 14 mm

Wiring diagrams ​

Neutral Wiring

No Neutral Wiring (10W)

When using the device without neutral, Shelly Dimmer 2 requires at least 20W @ 240 VAC of power consumption to operate. If the connected light has a smaller power consumption, then Shelly Bypass is needed for the device to work.

SW Neutral Wiring

No Neutral with Bypass Wiring

Use cases ​

Lighting control ​

Install Shelly Dimmer, and control any lights at home easily via your smartphone or with your voice. When you are reading your favorite book in the evening, picking a stronger light will ease your eyes. Also, dimming the lights during movie nights has never been easier!

Projects ​

Shelly Dimmer Wall Switch With Rotary Knob and Home Assistant Integration ​

Learn how you can add convenience to your smart home with Shelly Dimmer 2 by controlling your lights even when your Wi-Fi connection is down.

Learn More

Living Room for Movie With Shelly ​

Learn to create very simple automation using Google Home routines to make your living room all set for a comfortable movie night.

Learn More

Reviews ​

DrZzs ​

Smart Dimmer by Shelly + Excellent Home Assistant Integration

Jimmy James ​

Shelly Dimmer Installation - The Perfect Dimmer???