Over Temperature Protection, Heat resisting bulb, ensures reliability under high temperature environment COOlTech LED A Bulb: Utilizing smart IC technology, it monitors the lamp board temperature and automatically regulates the lamp power to realize over temperature protection, and ensures the lamp working under optimal thermal condition to secure the lamp reliability and lifetime used in the semi-enclosed fixtures, makes the CoolTech LED A Bulb smarter and more reliable!Get more details with our experts, sign up here→Shanghai Wellmax Lighting Industry Co.,Ltd. (list-manage.com)