Osram Ultra Life Light Bulb - 7506ULT - P21W - BA15S - 12V 21W

The Osram Ultra Life bulbs are designed to last up to four times longer than standard halogen lamps.

These bulbs are STVZO approved (meaning they comply with German road traffic regulations and require no registration) and have E1 approval, indicating they meet European standards. Always verify local regulations if you are outside of these regions.

The Osram Ultra Life 7506ULT is a P21W bulb with a BA15s base, typically used for signaling and auxiliary lights (like turn signals, brake lights, reverse lights). They are not designed for use as headlight bulbs, which require different types (e.g., H4, H7).

OEM quality means the bulbs are manufactured to the same standards as those originally supplied by the car manufacturer, ensuring a perfect fit and reliable performance.

It is recommended to handle the glass part of the bulb with a clean, lint-free cloth or gloves. Oils from bare skin can cause the glass to overheat and fail prematurely.

The lifespan B3 (500 hours) indicates the time by which 3% of bulbs will have failed, while Tc (1,000 hours) is the time by which 63.2% of bulbs will have failed. These are test conditions and real-world lifespan can vary.

This package contains 10 Osram Ultra Life 7506ULT P21W bulbs.

Ensure the bulb is correctly seated in the socket and the connection is clean. Check the vehicle's fuse for that circuit. If the issue persists, try the bulb in another known working socket or test a different bulb in the original socket to rule out vehicle electrical problems.

Ensure the correct bulb type (12V, 21W, BA15s) is installed. Check for excessive vibration in the vehicle, which can shorten bulb life. Make sure the bulb was not handled with bare fingers during installation. Inspect the vehicle's electrical system for voltage spikes.

Check the bulb socket for corrosion or damage. Ensure a secure connection. Flickering can sometimes indicate a loose connection or an issue with the vehicle's electrical system.