581 12V PY21W Osram DIADEM indicator bulbs.

• Shimmering surface to eliminate the fried egg effect
• Flashes amber as bright as a standard bulb
• Longer life than other painted indicator bulbs
• 12 months warranty

Osram DIADEM bulbs have been manufactured with a special opalescent coating which, when off, gives the bulbs a shimmering surface. This shimmering surface blends in with the silver reflectors of the headlamp eliminating the "fried-egg effect" you get with amber indicator bulbs. These Diadem bulbs flash amber to the usual intensity when in use.

The new DIADEM lamps are a simple direct replacement for your existing standard indicator bulbs and have been registered for use throughout all of Europe. DIADEM indicator bulbs have a improved life of over twice as long as alternative painted indicator bulbs.

Price per pair

Free UK shipping available for all orders over £25, and only £2.50 for orders under £25.

If you need your order urgently, we also have next day priority shipping for only £5.55.

For more information, and details of European and international delivery rates, please see our Shipping Information.

• Akshay Sarup
  
  I got a pair where I required a single bulb but I was so impressed with the brightness of the new onw that I replace the old working one with the new spare.

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• William Upton
  
  These are great bulbs, and they look great too, seeing that your getting rid of that fried egg look.

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• Jon Vel
  
  They get rid of the fried egg look, you get a blue tinge/iridescent look, which looks good in my opinion, have used Philips silver visions as well on other cars, both are great, just depends on the look you want to achieve on a particular vehicle application.

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• Sven Linton-Mitchell
  
  These bulbs look fantastic, much better than the standard chrome bulbs you'll find everywhere else. You pay a slightly higher price, but get a much better product.

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• Robin Evans
  
  Make my gsxr 750 k7 look great.

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• Greg Siddons
  
  Not as "silver" as I'd hoped but still, these diadem bulbs hide the orange tint quite well when off. A vast improvement on standard indicator bulbs and greatly reduced "fried egg" effect.

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• Sebastian Holland
  
  Do exactly what there meant to, plus there still just as bright as standard orange bulbs.

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Bulb Type	Upgrade Bulb
Voltage	12V
Application	Indicator
Wattage	21W
E Marked/Road Legal	Yes
Bulb Size	581