The Intermatic 100W Pool Transformer PX100 is designed to safely supply 12, 13, and 14 volts of alternating current (VAC) for underwater pool and spa lighting. This transformer features a grounded shield that ensures safe operation by isolating the primary and secondary windings. It is compatible with various submersible fixtures and outdoor garden lights, making it a versatile choice for poolside illumination. With a sturdy steel enclosure, it is built to withstand outdoor conditions while providing reliable power. The transformer operates on a standard 120V input and is an essential component for enhancing the safety and aesthetics of your swimming area.