Ballast D4S D4R Xenon Headlight HID Ballast Control Unit Module W3T21571 W3T23371 W3T24571 for Mazda for CX-5 for CX-9 2012-2015 Car Ballast

Ballast D4S D4R Xenon Headlight HID Ballast Control Unit Module W3T21571 W3T23371 W3T24571 for Mazda for CX-5 for CX-9 2012-2015 Car Ballast

• Easy Installation：No modifications and complicated steps, easy to install. If you are not familiar with Xenon Ballast Headlights Module maintenance or installation, it is recommended that you seek the assistance of a qualified technician or automotive expert
• High performance: The xenon ballast headlight for is designed to meet or exceed standards of original factory headlight ballast. Exact fit for plug-and-play. Manufactured from quality material, high strength and durability, which has a long service life
• Features: Xenon HID Headlight Ballast Module Control Unit Fits is a crucial part of hid lighting system, provides the voltage needed to start the lamp and regulates the electrical current of the light once it is lit. A failed ballast will cause bulb to burn
• Stable Performance: The internal circuit board is waterproof and shockproof. Using glue washing treatment can protect internal electronic components from oxidation and aging. The built-in high-voltage bag can accelerate current conduction speed, reduce power consumption, achieve fast start, and also protect the high-voltage bag from any dust and rain in the engine environment, enhancing usage safety
• Note：To properly diagnose your headlight fault, try moving the ballast from your working side to the non-working side. If the headlight begins to work, this replacement ballast will fix the problem. If the problem persists, a different component is causing the fault (most likely the bulb or wiring) .You can contact us if you have any question, we will reply within 24 hours and help solve the problem