The Standard Ignition DS 990 SI Multi Function Switch is engineered to provide reliable control over essential vehicle functions including turn signals headlights and fog lights Designed for seamless integration this switch ensures that operators can manage critical systems efficiently thereby enhancing operational safety and convenience Constructed with high grade materials the DS 990 SI is built to withstand the demanding conditions of commercial vehicle use offering durability and longevity Its robust design meets the stringent demands of today s service professionals ensuring consistent performance over time The switch features a bolt ottachment method facilitating straightforward installationd maintenance Equipped with a female connector and a rectangular connector shape it ensures a secure and reliable electrical connection The DS 990 SI includes a fog light operator providing additional functionality for vehicles equipped with fog lights Indicator markings are incorporated to assist operators in identifying switch positions quickly reducing the likelihood of operational errors The switch operates at 12 volts compatible with standard vehicle electrical systems Its black finish offers a professional appearance that complements various vehicle interiors By integrating the Standard Ignition DS 990 SI Multi Function Switch fleet operators can ensure that their vehicles are equipped with a durable and efficient control system contributing to improved operational efficiency and safety