The Kichler 150W Pro-Contractor Series Transformer makes it easy to add multiple home runs from a single unit, reducing clutter and installation time. Its built-in mechanical timer eliminates the need for additional accessories while the transformer's angled terminal blocks provide clear visibility and effortless wire connections. Its side-swing door stays completely out of the way, ensuring quick and easy wire access. Inside, a high-efficiency toroidal core delivers lighter weight, quieter operation, and superior performance over traditional EI cores. Plus, this transformer is designed to power a complete low voltage lighting system and supports all Kichler and compatible fixtures and lamps operating between 9V and 15V.