The Broan S79270237 Thermal Cutoff Lamp protects compatible ventilation and lighting equipment from excessive heat by interrupting electrical flow when high temperatures are detected. As a replacement thermal cutoff component, it acts as a safety device that disconnects the circuit when temperatures reach an unsafe level, reducing the risk of heat-related damage. A thermal cutoff supp... https://www.hnkparts.com/broan-s79270237-thermal-cutoff-lamp-34368