Combining class 2 transformers into one package, the Class 2 12180 Enclosed Electronic Transformer from WAC Lighting lets you wire runs of low voltage fixtures from a single source. The system’s protection, which is designed to last several hours, automatically resorts to a holding position whenever a short or overload is detected, and, when the problem is fixed, it automatically restores power, delaying the inrush of current to prolong bulb life using its soft start function.