OSRAM LEDriving SL Advance S25 P21W LED Car Signal Bulbs

OSRAM LEDriving SL Advance S25 LED Car Signal Bulbs (Pair)

Upgrade your vehicle's lighting with the OSRAM LEDriving SL Advance S25 — a premium pair of LED bulbs engineered for superior visibility, crisp beam patterns, and a distinctly modern look. Compatible with P21W, PY21W, and P21/5W applications, these bulbs are ideal for signal lamps, reverse lamps, fog lights, and brake lights.

Made in Mainland China.

Why Choose OSRAM LEDriving SL Advance?

• Consistent, Full-Bodied Light: Thanks to OSRAM's latest optical diffuser material, these bulbs deliver a uniform, clean beam — no "fried egg" hotspots or patchy coverage common with off-brand alternatives.
• Stylish Light Colours: Available in 6000K cool white and bold amber/yellow, as well as red — designed to look striking behind clear lenses.
• 80% Less Energy: At just 2.5W per bulb and 12V operation, you get outstanding brightness while drawing a fraction of the power of conventional halogen bulbs.
• Long-Lasting Performance: Built to last up to 2,500 hours — dramatically outlasting traditional halogen technology and reducing replacement frequency.
• Plug-and-Play Installation: Direct-fit S25 base (BA15s / BAY15d / BAU15s) for fast, tool-free installation. No modifications required.
• 2-Year Warranty: Backed by OSRAM's 2-year manufacturer warranty for added confidence.

Product Specifications

Compatible Applications

• Turn signal / indicator lamps
• Reverse lamps
• Fog lights
• Brake and stop lamps
• Position lamps

Note: External road-legal use regulations vary by region. Please verify compliance with local vehicle lighting laws before installation for on-road use.

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Frequently Asked Questions

Q: Which vehicles are compatible with the OSRAM LEDriving SL Advance S25 bulbs?

A: These bulbs are compatible with any vehicle that uses S25-base bulbs in the P21W (BA15s), PY21W (BAU15s), or P21/5W (BAY15d) fitments. They are suited for signal lamps, reverse lamps, fog lights, and brake/stop lamps on 12V systems. Always check your vehicle's owner manual or a bulb compatibility guide to confirm the correct fitment for your specific make and model.

Q: Are the OSRAM LEDriving SL Advance bulbs road legal?

A: Road legality for aftermarket LED bulbs varies by country and region. OSRAM notes that external use may not be road legal in all jurisdictions. Please check your local vehicle lighting regulations before using these bulbs on public roads to ensure full compliance.

Q: How do I install the OSRAM LEDriving SL Advance S25 LED bulbs?

A: These bulbs feature a direct plug-and-play design. Simply remove your existing halogen bulb and insert the OSRAM LED bulb into the same socket — no wiring modifications or special tools are needed. Installation takes just minutes per bulb.

Q: What is included in the package?

A: Each purchase includes 1 pair (2 bulbs) of genuine OSRAM LEDriving SL Advance S25 LED bulbs, supplied in the official OSRAM retail box. A 2-year manufacturer warranty is included.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.