Worry-Free After-Sales: Our products come with a two-year free warranty, which means you don't need to worry about the quality of the product. Contact the Seller: It is highly recommended to contact the seller before making a purchase, especially if you have any doubts about product selection or need additional information. The seller can provide you with professional advice to ensure that you purchase the right driver module. Vehicle Model and Year Compatibility: Your vehicle may have specific model and year requirements. Communicating with the seller can help you determine the correct product model and specifications to ensure full compatibility. Lamp Type: Different vehicle models and lamp types often require different types of driver modules or ballasts. Clearly understand whether your vehicle uses halogen lamps or xenon lamps to choose the correct product. Compatibility: Make sure you understand the product module model and specifications required for your vehicle to ensure that the selected product is fully compatible. Incompatible modules can result in poor lighting performance or failure to function properly. Product Specifications and Features: Check the detailed specifications in the product description, including voltage, power, dimensions, connection types, and more. Ensure that the selected product module meets the requirements of your vehicle and lamps. Part Number or Product Code: If you choose not to contact the seller, be sure to strictly follow the part number or product code of the product when making a purchase. This can ensure that you purchase a product that precisely matches your vehicle, avoiding unnecessary compatibility issues. Brand Certification: Our provided driver modules and ballasts are certified by vehicle manufacturers, which means they have undergone rigorous quality inspections and testing to ensure compatibility and performance.