The W.A.C. Lighting LINE and Straight Edge Plug-In Class 2 Transformer with 120V Input and 24V Output is designed to be used as a plug-and-play style transformer. It has a built-in auto reset, soft start, and short and overload circuit protection features. The soft start delayed start feature extends lamp life by delaying the abrupt inrush current to the lamp. This item is inherently protected and power limited, protecting the lighting system from both normal and abnormal short circuits. This model includes a lead wire for LINE and Straight Edge under cabinet systems.