Automotive replacement lighting designed to brighten number plate and interior lamps, using a standard 12V 5W rating. Drivers who favour straightforward, compliant spares will appreciate the legal reassurance and pack convenience of Xtremeauto 239 C5W Festoon Bulbs. Is stocking reliable replacements a sensible move for routine maintenance?
⚡ At a Glance
- • Light Output: Consistent 12V 5W illumination tuned for number plate and interior fitting
- • Best for: Drivers and DIYers needing dependable, easy-to-fit replacement bulbs
- • Not ideal for: Owners seeking LED conversions or alternative colour temperature options
Standard 12V 5W rating delivers predictable brightness for number plate and interior lights. E-marked certification and OE-spec manufacturing, supplied in a pack of ten, simplify replacements and compliance.
Consistent illumination - With a 12V 5W electrical rating
A fixed 12V 5W specification matches common automotive bulb power draw, so electrical load and fuse compatibility remain predictable. Identical power rating helps avoid overloading circuits or causing dimming in adjacent lamps.
Predictable brightness makes replacements straightforward, avoiding flicker or mismatched output. Swapping bulbs restores original illumination without additional adjustments.
Legal reassurance - With E-marked certification
E-marking indicates the bulbs meet recognised road-use standards and regulatory marking requirements for automotive lighting in many jurisdictions. Certification confirms compliance rather than relying on untested aftermarket components.
Peace of mind when using number plate lighting on public roads, reducing risk of non-compliant fittings during inspections. Suitable for drivers who prioritise conformity with legal requirements.
Spare-ready convenience - With a pack of 10 bulbs
Multiple units in a single pack provide immediate replacements for several fittings, or stock for future maintenance, without repeated purchases. Bulk supply is useful for multi-car households or small fleet maintenance.
Having ten bulbs on hand cuts downtime and avoids last-minute runs to buy parts. Handy for carrying a spare set in the garage or boot for quick swaps.
✨ The 4 Key Reasons for Xtremeauto 239 C5W Festoon Bulbs
- E-marked certification – Ensures legal compliance for road use across the UK
- OE specification build – Matches original fit and function for reliable replacements
- Pack of 10 – Keeps multiple spares, reducing trips to buy replacements
- Universal festoon size – Fits 11x38mm housings, suitable for many car lights
📋 Technical Details at a Glance
- Category: Automotive replacement bulbs
- Brand: Xtremeauto
- Model: 239 C5W Festoon
- Bulb type: Festoon
- Voltage: 12V
❓ Frequently Asked Questions
Q: Are these bulbs legal for road use?
A: Yes, E-marked certification confirms compliance with recognised road-use requirements, making them suitable for number plate lighting on public roads.
Q: Which lamp locations are suitable for these bulbs?
A: Number plate lights, interior dome lights and glove box lights are listed as common applications, matching the festoon form and 12V 5W rating.
Q: How many bulbs come in a pack?
A: A pack of ten bulbs is supplied, providing multiple spares for quick replacement or stock for several vehicles.
🏆 Our Verdict
Ideal for drivers, DIY mechanics and small fleets who want straightforward, compliant replacement bulbs for number plate and interior lighting. E-marked certification and OE-spec construction combined with a ten-bulb pack make these a reliable choice for routine maintenance. Strong long-term value comes from reduced trips for parts and the convenience of ready spares.
