John Bellone

Headquartered on Long Island New York, SPI has been manufacturing switching mode power supplies since 1976. With over 45 years of experience in the power supply manufacturing industry, we understand that reliability and customer satisfaction are the key to a successful business. With a deep knowledge of high power electrical engineering, we strive in developing long-lasting products designed to meet military standards in the toughest environmental conditions. From shipborne to airborne, to mobile applications, SPI's strength is in our fundamental topologies that provide high reliability building blocks to our custom and standard power supplies. With a high level of vertical integration, we offer a time efficient and low risk approach to developing and delivering electronics that fulfill each unique program requirement.