Smart Wi-Fi 2 Way Wall Switch

  • Replace one regular 2-way only. No needs to replace two regular 2-way switches.
  • Turn lights on/off from anywhere anytime anywhere with Meross app.
  • Works with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings.
  • Create on/off schedules or set auto-off timers to work automatically.
  • LED indicator helps find the switch easily even at night.
  • Easy to install and setup. No extra hub required.
  • Neutral wire(blue wire) required. Works with 2.4GHz Wi-Fi only.
  • Apple HomeKit website listed.
  • 100-240V~, 50/60Hz
  • 250W Max. for INC
  • 150W Max. for CFL&LED
  • 1 x On/Off Button
  • Press and hold for 5 seconds to initiate the factory reset process
  • 1 x Status LED
Dimensions ( W x D x H )
  • 3.4 x 3.4 x 1.3 in. or 8.6 x 8.6 x 3.5 cm
  • One internal antenna
Wireless Standards
  • IEEE 802.11 b/g/n, 2.4GHz, 1T1R
Wireless Security
  • Support 64/128 bit WEP, WPA-PSK/WPA2-PSK
  • *Does not support Enterprise Wi-Fi.
  • CE, RoHS, WEEE
Package Contents
  • 1 x Smart Wi-Fi 2 way switch
  • 4 x Screw
  • 1 x User manual
System Requirements
  • Smartphone running iOS 9* or later, Android 4.1 or later
  • Existing Wi-Fi network
  • *HomeKit version requires iOS 13.0 or later.
  • Operating Temperature: 0°C~40°C (32°F~104°F)
  • Storage Temperature: -40°C~70°C (-40°F~158°F)
  • Operating Humidity: 10%~90% non-condensing
  • Storage Humidity: 5%~90% non-condensing
Installation tips for MSS550 Ver.2

MSS550 v2 is designed to be used with electric boxes with load wires (also called live wires). The following points can help you find the correct electric box to install.

1. Choose the electrical box far away from the fuse box.

2. There is no voltage in the load line, please use an electrical tester to verify.

3. If you are still unsure, just select any electrical box to start using. The Meross app will help you detect the correct electrical box in the future.

For MSS550 v3, you can install it in the fuse side or load side electrical box.

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