... power switch 2,range hoods control panel 3,LED display 4,tactile buttons 5,three speed,timer,light,power on/off range hood switch ... ,electrical control panelrange hoods control panelLED display5 tactile buttonsthree speed,timer,speed,light,power on/ ... , LED digital tube Operation Pattern:touch switch button,sensor switch,tact keys,mechanical switch. Main Function: 1,Three working speed ...