The 93PM UPS with Eaton's acclaimed Energy Saver System (ESS) delivers unbeatable energy efficiency without compromising power protection or availability. When running in ESS mode the 93PM is more than 99-percent efficient. The advanced three-level inverter technology enables the 93PM to achieve up to 97-percent efficiency even in double-conversion mode. The 93PM provides the highest efficiency across the entire operating range. So, no matter what your application requires, 93PM reduces waste, lightens cooling burdens and lowers electrical bills.