ThinkGrow Smart Light LifterThe ThinkGrow Smart Light Lifter System The Smart Light Lifter solves the age old problem of how to easily raise and lower your supplemental light fixtures. The system is ETL listed and is designed to lift and lower LEDs with the press of a button or by setting a schedule in advance using a TrolMaster HCS Controller. Just like all of the other ThinkGrow and TrolMaster equipment, the ThinkGrow Light Lifter System is the first and only SMART light