L90020948 Car Headlight LED Driver Control Module DRL Ballast L90021969 L90020949 Material: This adaptive headlight control module is made of metal, lightweight and durable, ensuring long-lasting performance Functions: The daytime running light control unit is an important component of the lighting system. It provides the voltage required to start the bulbs and regulates the current after the bulbs are lit. Ballast failure can cause bulb burnout Headlight driver module, intelligent decoding eliminates faulty lights and improves light stability。 Xenon ballast, low power consumption and high brightness, no decay for long time use。, Manufacturer: LLYIXUAI