The Superior Electric PowerStat 3PN116B Variable Autotransformer is a high-quality electrical device designed for surface mounting. It features a Type B plug and can convert AC to AC current with a turns ratio of 1:40. With a primary voltage rating of 120V and a secondary voltage rating of 10V, this autotransformer is ideal for various industrial and commercial applications. Made in the United States by Superior Electric, this unit is reliable and efficient for controlling and stepping down electrical power.

Has imperfections from use but still works good. Could use a new grommet on power cable.