OSRAM Diadem Chrome PY21W 581 Indicator Bulbs at Car Bulbs Direct.

OSRAM Diadem Chrome PY21W 581 Indicator Bulbs
OSRAM Diadem Chrome PY21W 581 Indicator BulbsOSRAM Diadem Chrome PY21W 581 Indicator BulbsOSRAM Diadem Chrome PY21W 581 Indicator Bulbs

Received my order next day, thank you, very good service. Even placed a second order very next day.

— Andrew C, UK

OSRAM Diadem Chrome PY21W 581 Indicator Bulbs

Our Review

Tired of the ‘fried egg’ look on your indicators? Then why not try OSRAM PY21W Diadem Chrome Styling Indicator Bulbs. The silver surface on these bulbs will make your vehicle stand out from the rest.

No changes or adaptations need to be made to your vehicle to use these bulbs, you just simply need to remove the existing PY21W bulbs that are used in the vehicle.


Manufacturer's Review

DIADEM® CHROME is the perfect design solution for front, rear and side indicator applications. Designed to achieve that ‘invisible’ look in a clear headlight, tail light or side indicator unit. The new range has a 'chrome like' coating so when placed in a clear lens it is almost invisible. When activated DIADEM® CHROME flashes amber, just like a standard amber bulb would do. ECE approved and compliant with Regulation 37 (R37) , DIADEM® CHROME is an OE quality, like for like replacement for a standard PY21W (BS Ref.581) or a WY5W (BS Ref.501A) bulb.

These bulbs are OFFSET pin, designed for vehicles with clear lenses as standard using a PY21W bulb.

Technical Information

Number of Bulbs2
FittingPY21W (581)
Bulb TypeStyling
Light Improvement
Road LegalYes
Kelvin Ratingn/a

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Delivery Information

We aim to send all orders the same/next business day. Delivery times on our FREE standard delivery service are:

UK: 1-2 business days*
Rest of the World: 2-7 business days*

Need your order faster?
Customers in the UK, US & Canada can also use our express delivery service. Delivery times for this service are:

UK Next Business Day (InterLink): £5.00
US & Canada 2-4 Business Days (FedEx): $9.99

*average delivery times.

RRP: £14.99


incl. FREE delivery

You save: £5.00 (33%)

In stock - Order in the next 17 hours 51 minutes for dispatch tomorrow

  • Free worldwide delivery *
  • Free 12 month warranty