1). Take top cover away
2). Add water into tank
3). connect to power by USB line
4). Touch button for working
5).Press the button for 2 seconds, the light will on, press again for 3 seconds, light off.
First time press the button, continuous spray.
Second time press the button, intermittent spray(spray 3 seconds stop 2 second, power off after 12 hours
Third time press the button, stop work.
Press and hold the button for 1.5 seconds, the light on, 1.5 seconds press again, light off.