Setup, Compatibility & Care
Installation follows a direct plug-and-play process. Since these are designed as 1:1 replacements, you simply remove your existing D4S HID bulb from the housing, disconnect the power lead from the ballast, and attach the KATUR LED bulb. Ensure the connection is secure to avoid loose contacts.
Compatibility Warning: These are explicitly built to replace original HID D4S bulbs only. They will not plug into halogen sockets. If your vehicle uses a different HID base (such as D1S or D3S), these will not fit. For care, ensure the cooling fan intake remains unobstructed by dust covers, as airflow is critical for maintaining the 60,000-hour service life.