The lights turns on suddenly when the power reconnect after power off.

It can be appeared when the lamps have no switch button (not a smart switch and no scene linkage). If the device need to connect with Internet, it is necessary to ensure that the physical switch of the lamp is open, and then the lamp can be controlled with the APP.

But when the power off, the lights and app have no connection, by this time the lamp becomes ordinary lamp, when the power reconnected, therefore if the lamp physical switch is "on" at the before, the light will turn on automatically.

How to cancel the countdown?

Please set the countdown timer at 0 hours and 0 minutes to cancel the countdown.

How do I switch between Celsius and Fahrenheit ?

Please enter the APP – “Profile “, click personal icon into the basic information page, at the "temperature unit" choose what unit you need, after changing, the scene and so on will perform and show the temperature of the unit that you chose for.