Quasi Sine Square Wave Inverter is designed to provide power backup during blackout time. The Inverter is suitable for tube lights, fans, lamps, television, coolers, electronic typewriters, fax machines, personal computers and EPABX systems. The Inverter provides output in the form of quasi sine square wave. Quasi Sine Square Wave Inverter is also equipped with a dual rate CV or CC charger to facilitate automotive or maintenance free battery charging.