Power Supply For Low Voltage control of EI Fire Pits and EI Flame Control Systems. 500w, 5 Circuit-Class 2 24 VAC Power Distribution System is ETL (Intertek) listed for US and Canada and assembled in a NEMA 3R Endlosure. Comes with 120 VAC Power Cord-Output, allowing for control of up to 5 HPC EI Fire Effects.