The Star Mfg 2J-6403 Infinite Switch is a control equipment used on electric ranges, which allows for the control of temperature on heating elements. It uses a bi-metallic strip that opens and closes the circuit depending on the temperature and controls power through pulse width modulation PWM. This makes it possible for users to select an infinite number of heat levels other than fix... https://partsfe.com/2j-6403-star-mfg-infinite-switch