• YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d
  • YO812d

Smart Dimmer Switch - Socket 55 - TRIAC

Product Code: YO812d

Color: Socket 55 - Smart Dimmer Switch

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Full Demo Video

Real Product Demo


Yoswit Smart Switch

  • 55 / 86 / 118 / 120
  • Bluetooth

(ULTI Ezinstall3)

  • Do Not Support LED
  • Do Not Support LED
  • 55 / 86
  • RF


  • Do Not Support LED
  • 55 / 86 / 120
  • Wifi / Zigbee / RF


  • 120
  • Wifi / Bluetooth / ZWAVE


  • 120
  • Wifi / Zigbee / RF

Run Your Home from Your Phone

Mobile As Hub
Mobile As Hub
Voice Control
Voice Control
Mesh-like Network
Mesh-like Network
Remote Control
Remote Control
Room and Scenes
Away Detection
Away Detection
Schedule Timers
Schedule Timers
Password Protection
Password Protection

Bluetooth Version

We use Bluetooth 4.2 (also sometimes referred to as Bluetooth Low Energy or BLE) as the core processor of our products.

Compatible Devices

We support all Smart Ready products with our application installed. Please Click Here to get the growing list.

IOS Support

We support IOS 7.0 or above versions. Also, we have separate applications with different resolution for iPhone and iPad.

Android Support

We support Android 4.3 or above versions. It's the first Android version with Bluetooth Smart support which has just been released on Aug 2013.

Product Name Yoswit Smart Dimmer Switch
Model YO812d
Revision V2
Compliance CE, FCC, RoHS
Manufacturer Designed by Yoswit in Hong Kong. Assembled in China.
Product Size

Front and Back View

Side View

Surface Materials V0 flame-resistant PC+ABS
Socket Type Socket 55
Storage Conditions -20°C to 60°C
Operating Environment Indoors
Operating Temperature Range -10°C to 40°C
Ingress Protection (IP) 20
Operating Humidity Range 0-90% relative humidity, non-condensing
Input Voltage AC220-240V
Frequency 50/60Hz auto detected at power-up
Resistive Load Current 220 watt
Inductive Load Current 220 watt
Minimum Load Power 5 watt (*for 2-wire [without neutral wire] installation only)
Standby Power <0.1 watt
Wiring Options Wiring details available on the Installation page
Product Compatibility Bluetooth Smart Ready products
Frequency 2.4GHz
Radio Transmission Power 0~5 dBm
Bluetooth Range Open area: >50m; indoor: 3-20m
Bluetooth Version Bluetooth 4.2
Weight 188 g
What's in the Box

What is in the Box

Installation Guide



Disconnect Power

Remove the old switch and disconnect the wires, please make sure that there is about 5mm of bare wire exposing.

Basic Installation


Remove the old switch and disconnect the wires, please make sure that there is about 5mm of bare wire exposing.



Insert a small, flat screwdriver in notches on wall plate and twist gently to pry from frame to remove wall plate.



Connect the wires to the switch case. Make sure that the wires are secure.



To reduce risk of electrical shock, unit shall be properly grounded in accordance with local regulations or codes. Failure to connect the ground wire will result in an unsafe installation that could lead to personal injury.


Fasten the switch on wall by placing the proper wall mount components.



Turn on the circuit breaker and connect to the power.


Ensure the light indicator is on and test your dimmer switch by tapping 2 to 3 times. Your lights will be set brighter or dimmer.



Snap wall plate to frame. There are four click-stops for adjusting the fit of the wall plate to the switch


Installation - LED Power Stabilizer (Optional)


After 2-wire (without neutral wire) wiring, in case you encountered conditions of circuit instability, lightings gleaming or no light, you may (i) adopt 3-wire (with neutral wire) wiring method, or (ii) place the power driver at two ends of any one lamp as the diagram below:


Installation complete.

Download the Yoswit App to your smart device and enjoy it now!

Yoswit will automatically detect the switch and add to your device list.

Certification FCC RoHS
User Manual Download
Data Sheet Download
Leaflet Smart Light Switch Full Catalogue
Yoswit App
Yoswit App (Android Apk) Download

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