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Osram PR21W Diadem Red Bulb 12v 21w is up to twice as long a lifetime as a standard bulb. The new DIADEM car bulbs have an advanced interference coating. The surface of a lamp therefore has a shimmering opalescent appearance which blends in with the light unit reflectors. An ideal upgrade for those with clear lenses and don't want to see a red bulb.

They are suitable for use throughout Europe and are a straight swop for units that require a red single filament bulb - through a clear lens.
Osram PR21W Diadem Red 12v 21w BAW15s
Osram PR21W (single)   £ 26.95
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