The Hammond 166G6 is an economical single primary filament transformer designed for a variety of applications. It features a 115V 60Hz primary and a 6.3 C.T. secondary, offering a reliable power source in a compact form factor. The transformer's open-style chassis mount design and dual bobbin construction contribute to its versatility and efficiency. It is UL listed and CSA certified, ensuring compliance with industry standards. Suitable for use in lighting, appliances, and other electronic devices.