EXELTECH was founded in 1990, based on the philosophy that efficiencies in the inverter manufacturing process through product design, coordinated with facility layout, was paramount to productivity and the key to a quality inverter product. Our mission is to provide leadership inverters and superior customer service through the merging of innovative designs with advanced manufacturing technology. EXELTECH offers the best regulated AC power inverter available from any source, inverter, generator and public utility included. You can not buy cleaner power anywhere. EXELTECH was first in the market with true sine wave inverter, back when all the competition offered was "quasi-sine wave inverters". Now that most of them offer "true sine wave inverters" we ask you to compare performance and price to other inverters.