Pairui (Fuan Electronics Co., Ltd.) is a Chinese power-conversion manufacturer based in Tianchang City, Anhui Province. Pairui specialises in industrial power supplies across a broad range of form factors - PCB-mount and enclosed AC/DC converters, DIN-rail power supplies, isolated and non-isolated DC/DC converters (SMD, SIP and DIP packages) and LED drivers - engineered around a reliability-first design philosophy for OEM and industrial applications.