OSRAM

Why buy me?


Not only can you upgrade your headlight bulbs, you can also upgrade your signalling bulbs too. The OSRAM DIADEM range offers a series of bulbs that can be easily used instead of conventional amber signal lights. The OSRAM CHROME DIADEM bulb features a silver coloured surface which will enhance the styling of your car as the indicator bulb will match the chrome of the headlight unit.

So what are the benefits of upgrading your signalling lights? These clever OSRAM DIADEM CHROME upgrade bulbs will last twice as long in comparison to standard bulbs. The main selling point, however, is the enhanced style these bulbs offer.

The OSRAM Diadem PY21W bulbs can be used for both your front and rear indicators.  If you’re keen to invest in lighting to improve the overall aesthetics of your vehicle, we highly recommend these DIADEM signalling bulbs: if you’ve purchased new headlights it’s worthwhile upgrading your other bulb fittings too.    
          

Features and benefits


  • Styling enhancement
  • For use in clear lenses
  • Directly interchangeable
  • For both front and rear indicators
     

The technical bit


Number of bulbs: 2
Brand: OSRAM
Fitting: PY21W
Bulb type: Styling
Voltage: 12V
Wattage: 21W
Road legal: Yes
Colour temperature: n/a

 

Product specification

Number of Bulbs2
FittingPY21W (581)
Bulb TypeStyling
Technology
Road LegalYes
Kelvin Ratingn/a
Wattage21W
Voltage12V
Lumens
Range
BaseBAU15s
Light Improvement
SKU7507DC-02B
EAN4008321972774
ConditionNew
Here's all you need to know about our delivery services on orders below:
Destination Delivery Method Delivery Time Price
UK Economy Delivery
FREE Delivery
Tracked Delivery 48 Hours
Tracked Delivery 24 Hours
*DPD Next Day Delivery
3-4 Working Days
3-4 Working Days
2-3 Working Days
1-2 Working Days
1 Working Day
£1.69 on orders under £14.99
Free on orders over £14.99
£1.99 
£2.99
£5.99
Australia

Standard Delivery

FREE Standard Delivery
Tracked Delivery  

7-10 Working Days

7-10 Working Days
5-7 Working Days

$5.75 on orders under $31.95

Free on orders over $31.95

$19.15

Canada Tracked Delivery 7-10 Working Days $4.99
*US Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
$4.99
$14.49
Singapore
 
Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
£4.99
£8.99
New Zealand Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
£4.99
£8.99
*Europe Standard Delivery
Tracked Delivery
7-10 Working Days
5-7 Working Days
€4.99
€11.69

We're now operating a new system for deliveries, whereby certain orders are processed on demand. This means that particular products may take longer to arrive, as we will request these from our supplier after you place your order - Please see individual product pages where delivery is impacted. But won't worry, it'll be worth the wait.

*We only ship to parts of the US, states include: California, Florida, Georgia, Illinois, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Texas, Virginia, Washington, Alabama, Arizona, Colorado, Iowa, Idaho, Kansas, Massachusetts, Maine, Missouri, Mississippi, Montana, North Dakota, New Mexico, Oklahoma, Oregon, South Carolina, Tennessee, Wisconsin

*We only ship to parts of Europe, countries include: Belgium, Cyprus, Denmark, Finland, France, Germany, Greece, Ireland, Netherlands, Portugal and Sweden.

*DPD Next Day Delivery orders to the UK, please note:

- Orders placed before 3:30pm Friday will be delivered Monday.
- Orders placed after 3:30pm Friday will be delivered Tuesday.

Unfortunately due to regular problems when delivering to certain countries via a non-tracked service, we cannot currently offer our free international delivery service to the following:

  • New Zealand

On rare occasions, due to factors outside of our control, delivery may take slightly longer. If you haven't received your order within the estimated time please accept our apologies. Please contact us and we'll be happy to provide further assistance.

Special note for Australia: We have been advised that parcels are currently expected to take 15-25 working days to arrive to Australia, depending on the location. This is due to measures being taken to prevent the spread of Covid-19. We are currently taking steps to try to reduce this delivery time as much as possible. 

Please note: If your parcel is being shipped internationally, additional customs fees may apply.

Customer Reviews

4.7/5
12
2
1
0
0

style

5/5

no more orange tint bulb ,great look and Amber flashing is first class worth the money

Stuart Graham

Reviewed on:

Easy upgrade

5/5

Replaced the orange front indicator bulbs on our Suzuki Swift. A simple and cheap upgrade, these Osram bulbs blend in nicely and look much better.

Mr A

Reviewed on:

Great website

5/5

Great website great product great customer service actual bulbs perfect

Chris

Reviewed on:

Excellent

5/5

Excellent bulbs. Nice look to the car. Fast shipping.

Tiago

Reviewed on:

Excellent Customer Service

5/5

My order initially ran into an issue with the Royal Mail international shipping service - Jack from Power Bulbs tracked down the problem and helped remediate the issue. The package arrived shortly after and in perfect working order. Thanks Jack and Power Bulbs!

Chris

Reviewed on:

Perfect choice

5/5

2 sets of these were the first thing I bought for my Saab 9-3. They will make a great change aesthetically to your car if it has clear glass lamp units.

DS

Reviewed on:

Chrome PY21W

5/5

These bulbs work as advertised. With the stock orange bulbs, the orange color was visible through the front clear turn signal lenses. With these Chrome bulbs, they only show orange when flashing, but are invisible when the bulbs are off. They flash just as brightly as the stock orange (non-Chrome) bulbs. Once I placed the order, it took about 10 days to get the bulbs from Powerbulbs.

Matt N

Reviewed on:

Perfect bulbs

5/5

Have used Power Bulbs before and would recommend them without hesitation. The bulbs arrived in a very securely packed box and the bulbs were far cheaper than other places such as Halfords.

Stephen Pawlak

Reviewed on:

best bulbs

5/5

These osram diadem chrome indicator bulbs are brilliant and bright when signalling will purchase more of these for the rear indicators would recommend these bulbs

Thomas Lee

Reviewed on:

Nice bulb

4/5

Very bright. When off it is invisible at night but a little amber in the day.

Jian

Reviewed on:

Diadem Chrome

4/5

They aren't true chrome (mirror effect), like the other cheap alternative. You can see inside the bulb from the side but not from the front. They emit a very good light, bought these because I think Osram's are more durable then other cheap brands.

Bjorn

Reviewed on:

great bulbs

5/5

the bulbs are a perfect fit. There's absolutely no amber color when light is off. Headlights look great with them.I'm going to buy another pair for my rear turn signals.

Nipsy

Reviewed on:

Bulbs

5/5

GReat product, fantastic service

R Murphy

Reviewed on:

Ok but not great

3/5

Slightly disappointed in these bulbs. I remember having a set ages ago that were great but these ones still appear slightly orange and the chrome finish scratches off easily if you aren't very careful fitting the bulbs (hard on a 1 series!!) I guess it's the price you pay for road legal

Mbarned

Reviewed on:

Osram Diadem Chrome

5/5

Great product - looks almost silver and a great amber light.

Bob G

Reviewed on:

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OSRAM Diadem Chrome PY21W (581) (Twin)

4.7 15 customer reviews

List Price: $21.74 USD You save $4.35 USD

$ 17.39 -21%
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