Osram Diadem PR21/5W Bayonet Signal Globe
The Osram Diadem 7538LDR-01B is a signal globe featuring an opal finish created by a state-of-the-art interference coating, making it an attractive complement to halogen and xenon headlamps in vehicles with clear indicator covers.
- Opal design: interference coating gives the globe a clean, opal appearance when off — only emitting amber or red light when illuminated
- Correct signal colour: emits only amber or red light during operation, suitable for indicator and signal applications
- Extended service life: up to double the service life compared with standard signal lamps
- Voltage: 12 V | Wattage: 21/5 W | ECE type: PR21/5W
- Ideal for indicator lights fitted with clear covers
A stylish and long-lasting replacement signal globe for vehicles requiring a PR21/5W bayonet fitment.
Please check the globe fitted to your vehicle before ordering. Even if our catalogue or vehicle compatibility table shows this globe suits your vehicle, we strongly recommend confirming it against the globe currently fitted to your car. In our experience the catalogues are reliable, but a single vehicle can use several different globe types depending on the position — for example Low Beam, High Beam or Fog Light — and these details often can't be listed in the catalogue. The only certain way to get the right globe is to check what is physically in the vehicle. Please don't rely on the Parts Catalogue or Vehicle Compatibility table alone.
| SKU | 7538LDR-01B |
| Model # | 7538LDR-01B |
| Barcode # | 4008321376862 |
| Brand | Osram |
| Placement On Vehicle | TBA |
| Voltage | 12V |
| Wattage | 21/5W |
| Interchange Part Number | 7538LDR-01B |
| Position On Vehicle | TBA |
| Industry Standard Part Code | 7538LDR-01B |
| Contains Liquid | No |
| Number of Bulbs | 1 |
Packaging: Manufacturers periodically update their packaging and labelling. You may receive the current or a previous design — the product, formulation and part number are unchanged.
Fitment (vehicle-specific products): For products listed to suit a specific vehicle, our fitment data is kept as accurate as possible, but vehicle catalogues are not perfect. Some models had more than one part fitted depending on build date, engine, or component size/variant. It is the buyer's responsibility to confirm the part suits their vehicle before purchasing. If you have any doubt, please message us with your vehicle's registration number and state (preferred), or full VIN/build details, and we'll do our best to confirm before you buy.