Intermatic PX300 300W Pool Light Transformer 12VHigh wattage pool lighting systems require a transformer that can safely deliver consistent low voltage power without overheating or voltage drop. The Intermatic PX300 300W Pool Light Transformer is designed to convert standard 120V input into safe 12V low voltage output for larger or multi fixture pool and spa lighting installations. This transformer is commonly used when multiple pool lights, spa lights, or high output fixtures are installed on the