UPS with nickel cadmium battery for power substation; UPS with lithium battery for power substation, telecom; IP55 outdoor UPS with water proof, work for -45C degree to +60C degree environment for railway, telecom, power substation; DC UPS with 48V/110V/125V/220VDC for power substations 110V/125V/220V battery chargers for power substations, plant, lithium battery, electricity, navy 110V/125V/220V inverters for power substations, power plant,
