Ring Pro 566 P21/4W Car Bulb Single Pack
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Ring Pro 566 P21/4W Car Bulb Single Pack 440054

Ring Pro 566 P21/4W Car Bulb Single Pack is rated 4.3 out of 5 by 6.
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£4.50 £2.29 save £2.21
Intervening prices may have been charged
we Fit from £8.00
  • Lasts 50% longer than a standard bulb
  • Fitted as standard by leading car manufacturers
  • Expertly fitted in our stores and garages

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Ring Pro 566 P21/4W Car Bulb Single Pack

Ring Pro bulbs combine the quality expected from world-leading lighting and automotive brand Ring with an affordable price.

Manufactured to Original Equipment (OE) standards, the Ring Pro 566 P21/4W Car Bulb Single Pack provides excellent illumination and is a popular choice among motorists. The bulb is suitable for fog, brake and tail lights. It’s E-marked, road legal and comes in a single pack.


Bulbs degrade at similar rates and if one fails then its highly likely that the other is also nearing the end of its life. Halfords therefore recommends replacing all car bulbs in pairs to save time and money.

Features & Benefits:
  • OE Ring Pro 566 P21/4W car bulb
  • Fog or tail
  • E-marked and road legal
  • Single pack
  • Suitable for 12V vehicles
  • Always replace in pairs