Fog/timer button
* Press once: fog made for 1 hour
* Press twice: fog made for 3 hours
* Press the third: fog made for 6 hours
* Press the fourth: turn off the diffuser
Light button
* Press once: Turn on the LED light, change the color automatically, rotate 7 colors.
* Press two times: manually change the LED color .
* Hold down for 2 seconds: turn off the light