Remote Control Lights and Appliances Timing Function, Overload Protection, No Hub Required , Compatible with Tuya APP, Amazon Alexa and Google Home, WiFi Wall Wireless Touch Switch Smart Light Switch
-30~70 ℃, less than 95%RH
100,000 times operation/ Two years warranty
1. Can the switches still be used manually--without Alexa or the Kasa app once set up?
Yes - you can simply press the physical switch on the device to manually turn the lights on or off.
2. Can I install the switch vertically?
Sure, any pose.