How to use the timer switch<br><br>  <b>Temperature: </b><br> When turned on, the default temperature is the highest (H). Normally, <br>it does not need to be adjusted. If you feel too hot, use this switch.<br> H: Highest (Screen color:Red)<br><br>  M: Medium (Screen color:Green)<br><br>  L: Lowest (Screen color:blue)<br><br>  <b>Working time:</b><br> The default is 2H, and it will automatically turn off at the end of time. If<br> you need other gears(4H,8H), please press the switch to select.<br> If you need to manually close, please press the switch until it is closed