The W.A.C. Lighting Enclosed Electronic Transformer with 12V and 250W incorporates troubleshooting diagnostics, full-scale dimming and compact size with auto reset, soft start, and short circuit protection technologies. The soft start delayed start feature extends lamp life by delaying the abrupt inrush current to the lamp. In the case of a system overload or short circuit, the transformer will revert to a hold position and then automatically reset the system when the problem is solved.