Function and protection The xenon headlight control module uses advanced technology to speed up startup, reduce energy consumption, and provide fast ignition. It regulates the voltage and current supplied to the lamp and offers short circuit protection, open circuit protection, polarity protection, overload protection, and load protection. Brightness and performance The ballast control unit module improves lighting, enables quick start, and lowers power consumption, increasing lighting distance and range. With advanced electronic ignition technology, it delivers stable voltage output, minimizes interference, and supports up to 10 million flashes. Dropin replacement and installation Dropin replacement for your existing parts, designed to meet or exceed OEM specifications. Plugandplay installation requires no programming or coding. Suitable for left or right headlights. Important compatibility note When placing an , verify that the product page details and OEM are consistent with your vehicle. If there is any discrepancy, contact our professional customer service to help you confirm. Practical use scenarios Replacing a failed HID ballast in a dailyuse vehicle to restore fast start and reliable brightness for night driving. Upgrading aging ballast for longer highway trips to improve energy efficiency and headlight life. Quick, plugandplay replacement for both left and right headlights without vehicle reprogramming, suitable for shops and DIY installers.