<p>Push button Switches, also known as biased switches, work on the principle of simple electric switch mechanism. Push button Switches are a type of momentary switch in which the user push-for "on" or push-for "off" to control some aspect of a machine or a process. The buttons are usually made of metal or plastic and deliver instant response. AML21CBE2AD Honeywell switch is used in mechanical and electronic devices and various other home and commercial appliances.</p> <p>AML21CBE2AD push button switch from Honeywell features a snap-in panel mount and delivers alternate action. This micro push button switch is lighted with 1 incandescent lamp. It comes with a choice of 1, 2, or 4 poles and silver or gold contacts. This push button switch has full guard bezel option.</p>