Profile: Exeltech, Inc. is an ISO-9001:2000 & TL 9000 certified manufacturer of sine wave power inverters, battery charges, rectifiers, and accessories. We provide electronics & superior customer service by merging designs with advanced manufacturing technology. We offer more production models. Inverters under different series are also available. Our frequency converter is operated by simply plugging in the supplied cord to the power input, connecting the load to the output plug provided, and turning the unit on. The input & output receptacle, along with the switch, are mounted on the left rear side of the enclosure.