I really know nothing about this item.I plugged it in the light did not work I'm assuming it does not work. But A.I says. The STACO O33-0125 Variable Transformer CUT CORD is a high-quality electrical equipment designed for industrial use. Made in the United States by the reputable brand STACO, this variable transformer is specifically designed for cutting through cords and wires with ease. Its durable construction and precise engineering ensure efficient and reliable performance in various industrial settings. Ideal for professionals in the electrical equipment and supplies industry, this product is a valuable tool for handling complex power transformer tasks.