his is the standalone electronic flash unit designed to accompany the Phenix 205 series rangefinders. It is a basic manual "hot shoe" flash, meaning it is triggered by the electrical contact on the camera's accessory shoe. The rear of the unit features a comprehensive manual exposure table, allowing the photographer to cross-reference their film speed (ISO/DIN) with the distance to the subject to determine the correct aperture (f-stop) for a proper exposure. Its compact, lightweight plastic construction made it a highly portable lighting solution for Chinese consumer photography during the late 20th century.