The product is a Genuine OEM headlight ballast designed for xenon lighting technology. It is specifically designed for vehicles such as Ford, Chevrolet, and Dodge models from 2003 to 2019. The mounting style for this ballast is a screw-on design, making it easy to install and replace if needed. With an interchange part number of A71154400DG, this headlight ballast ensures a perfect fit and reliable performance for your vehicle's lighting system.