Shelly Dimmer 2
WiFi-operated dimmer working without a neutral line
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 provide a full set of dimming functionalities. You can control a wide range of halogen lights, dimmable LED and ferromagnetic transformers.
Features
- No HUB required.
- Dimming without a neutral line.
- Turn-ON/OFF or use the dimming function to set your lights to your preference.
- Special 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 AC | 110-230V ±10%, 50/60Hz |
| SPECIAL FUNCTIONS | |
| Device temperature protection | Yes |
| Overload protection | Yes |
| Power measurement | Yes |
| Dimming | Yes |
| Dimmable LED | 50-200VA / 10W – 200W |
| Incandescent and halogen light sources | 10-220W |
| Resistive-inductive loads ferromagnetic transformers | 50-150VA |
| Working without a neutral line | Yes |
| FEATURES | |
| Colour changing | No |
| Predefined effects | Yes |
| Channels | 1 Channel |
| Operational temperature | 0 to + 35 °C |
| Device power consumption | < 1 W |
| Intelligent On/Off | Yes |
| Local and remote control | Yes |
| Sunrise/Sunset | Yes |
| Weekly Schedule | Yes |
| UL Listed option | No |
| CONNECTIVITY | |
| Wireless/WiFi Protocol | 802.11 b/g/n |
| Radiofrequency | 2400 – 2500 MHz |
| Radio signal power | 1mW |
| Range | up to 50 m outdoors and up to 30 m indoors (depending on the building materials) |
| DIMENSIONS | |
| Size | 42mm x 36mm x 14 mm |
Wiring diagrams
How to connect
Standard wiring with neutral
No neutral wiring*
*When using the device without neutral, Shelly Dimmer 2 requires at least 10W of power consumption to operate. If the connected light has a smaller power consumption, then Shelly Bypass is needed for the device to work.
Standard wiring with neutral and SW connected to neutral
No neutral wiring with no minimum load requirements
Device pinout
Flash/Debug
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 night 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 Dimmer1 by controlling your lights even when your Wi-Fi connection is down.
Living Room for Movie With Shelly
How to create very simple automation using Google Home routines to make your living room all set for a comfortable movie night.
