Intermatic PX600 Transformer, Intermatic, 115v, 12v/13v/14v, 600wCalifornia Residents WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov These Safety Transformers are specifically designed to supply 12 volts to pool/spa lights, submersible fixtures and outdoor garden lights. A grounded shield between the primary and secondary windings assures safe operation and the built-in circuit protection will disconnect power to the transformer in case of defect or overload. PX100 & PX300 enclosure size: 7-1/4"h x 5-1/4"w x 4-1/2"d PX600 enclosure size: 10-3/4"h x 10-3/4"w x 4-1/4"d