OSRAM P21/5W (7528ULT-2BL) 380 12V 21/5W ULTRA LIFE - Up to 4x Lifetime - Twin Pack

OSRAM P21/5W (7528ULT-2BL) 380 12V 21/5W ULTRA LIFE - Up to 4x Lifetime - Twin Pack

OSRAM ULTRA LIFE P21/5W dual-filament bulbs are designed for maximum reliability and longer replacement intervals. With up to 4x the lifetime of standard bulbs, they are perfect for vehicles using combined brake/tail or rear fog/parking lights. Backed by an OSRAM 4-year guarantee, these bulbs provide long-lasting safety and performance.

• Up to 4x longer life vs. standard P21/5W bulbs
• OSRAM 4-year guarantee (manufacturer)
• Road legal – ECE category P21/5W approved
• Dual filament: 21W (brake/fog) & 5W (tail/parking)
• BA15d base (double contact, parallel pins)
• Twin blister pack (2 bulbs) – product code 7528ULT-2BL

Typical applications

• Brake + tail light combinations
• Rear fog + parking light combinations
• Other dual-function rear lights (where P21/5W is specified)

Specifications

What’s in the box

• 2 × OSRAM P21/5W ULTRA LIFE 12V 21/5W bulbs (7528ULT-2BL)

Why choose ULTRA LIFE

Dual-function bulbs are essential for rear visibility and safety. OSRAM ULTRA LIFE ensures fewer replacements and reliable light output, making them an excellent long-term choice for brake and tail light applications.

Guarantee

OSRAM 4-year guarantee on all ULTRA LIFE signal bulbs. Manufacturer guarantee terms apply.

Product video

Note: Always replace bulbs in pairs for balanced performance. Check your vehicle handbook or existing bulb to confirm P21/5W (BA15d) fitment before purchase.