BRIGHT 21W SINGLE FILAMENT OUTPUT - Suitable for reverse, indicator, brake and tail light applications requiring W21W 12V 21W bulbs. W21W 582 / 382W FITMENT – W3x16d T20 CAPLESS BASE - Designed for 12V 21W single filament systems. Always confirm bulb marking or vehicle handbook before purchase. E-MARKED ROAD LEGAL COMPLIANCE - Fully E approved for legal UK and EU road use, supporting MOT compliance and dependable performance. BOX OF 10 FOR SERVICING & BULK USE - Ideal for garages, fleet maintenance and multi-vehicle households requiring reliable replacement bulbs. MANUFACTURED TO OE SPECIFICATION - Built to standard W21W requirements for consistent installation and lighting performance.
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