Mercury 652100uk series 1224v softstart power inverters pure sine mercury 652104uk the mercury 652104uk is a 108 to 155v dc high efficiency softstart power inverter that uses a pure sine wave to power 230v mains equipment from a 12v battery or dc power supplythe inverter is perfect for use while camping in commercial vans lorries or as a means to convert charged batteries for back up power in case of a blackout applications ideal for use with tvs lighting fans kettles and man