HERO-LED PS-24LPS120-DIM ETL-listed Dimmable LED Constant Voltage Power Supply - Dimmble LED Transformer 24V DC, 5A, 120W Includes 1pc dimmable LED power supply 24V DC, 5A, 120 Watts Works with conventional dimmers to dim led strip lights, led light bulbs and other low voltage led lights. Compatible with Forward & Reverse phase, Triac, ELV Dimmers Certificates: ETL/FCC Approved Warnings: Don't open or modify the led power supply. Please leave children, kids far away from high voltage power source. Please use it under professional electrician's guides. Any abuse or improper use will void warranty.