The ECO-SPS Series Inverter is an emergency power system that ensures continuous 60Hz sinusoidal AC output for lighting during outages, with models available in 55W, 110W, and 220W capacities. The system supports universal 120/277V input/output, a sealed lead-calcium battery with automatic recharge, and includes features like soft start, short circuit, and overload protection. Compatible with incandescent, fluorescent, induction, and LED loads, it also offers surface, recessed, and T-grid mounting options.