The Whirlpool WP74011489 Range Infinite Switch is a knob or lever developed exclusively for controlling the heat setting of Whirlpool range burners. Unlike standard knobs with restricted settings, this infinite switch provides a wide range of positions, allowing for exact temperature control when cooking. Users may regulate the flame size from low to high by just spinning the knob, giving them greater flexibility and precise control over the cooking process. The Whirlpool electric and gas ranges are both equipped with this infinite switch. Its endless settings enable precisely simmering sauces, properly browned meats, and delicate sautéing, all with greater precision than ever before.