OSRAM Diadem Chrome PY21W (Twin)

OSRAM DIADEM® CHROME Auxiliary Signal Lamps

Transform the look of your vehicle’s indicator and signal assemblies with OSRAM DIADEM® CHROME auxiliary lamps. Designed specifically for clear-glass headlight and taillight units, these halogen signal bulbs feature an exclusive chrome finish that blends seamlessly into your lamp’s reflector housing when switched off.

Say goodbye to the unsightly "fried egg" orange or yellow glare inside your clear light lenses. When inactive, OSRAM DIADEM® CHROME lamps remain practically invisible, only flashing a bright, unmistakable amber or red signal when switched on to ensure optimal road safety and sleek vehicle styling.

Key Features & Benefits

• Exclusive Chrome Surface: Advanced interference and absorber coating renders the bulb neutral and chrome-like when inactive.
• No "Fried Egg" Effect: Completely eliminates ugly orange or red reflections inside clear-glass headlight and indicator housings.
• Characteristic Characteristic Signal Flashing: Emits brilliant, intense amber or red light only when illuminated for high-contrast safety.
• ECE Approved: Fully road-legal for clear-glass front, side, and rear indicator or brake applications across Europe.
• Long-Lasting Performance: Premium OSRAM halogen engineering provides double the service life of standard amber indicator bulbs.

Why Choose OSRAM DIADEM® CHROME?

Standard amber or red signal bulbs spoil the modern aesthetics of clear-glass headlight and taillight housings by casting an unwanted colored tint inside the reflector. OSRAM DIADEM® CHROME bulbs deliver a clean, continuous chrome aesthetic when turned off, combined with instant-on high visibility signaling and full ECE road legality—backed by original equipment German quality.

• Fitment Note: Available in key signal types (such as PY21W / BAU15s, PR21W / BA15s, and WY5W / W2.1x9.5d). Please check your vehicle's manual or existing bulb socket type before ordering.