... power switch 2,range hoods control panel 3,LED display 4,tactile buttons 5,three speed,timer,light,power on/off range hood switch ... indicator, LED digital tube Operation Pattern:touch switch button,sensor switch,tact keys,mechanical switch. Main Function: 1,Three working speed for ... according to difference items.3,sound notice when you press the button4,Over currency ,over voltage protection PowerWe ...