# Car light bulb Osram P21W 25 W BA15s automotive signal lamp

**URL:** https://aio.lv/en/product--osram-4050300925448--11347123
**Data updated:** 2026-03-07 19:58 (EET)
**Category:** Car Supplies
**Manufacturer:** osram
**Manufacturer code:** 4050300925448
**EAN:** 4050300925448
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--osram-4050300925448--11347123

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Osram P21W car light bulb, 25 W power with BA15s (single-contact bayonet) base and P21W fitting. Designed for automotive signal and indicator applications such as brake, tail, and turn lamps. Provides a standard incandescent light source compatible with vehicles using P21W/BA15s sockets; suitable for replacement and maintenance.

## Long description

The Osram P21W 25 W BA15s automotive signal lamp is a single-contact bayonet incandescent bulb designed for standard vehicle signalling applications. It fits P21W sockets and is commonly used in brake lights, tail lamps and turn indicators. The bulb delivers a consistent warm light output appropriate for conventional vehicle lighting systems that require a 25-watt P21W lamp with a BA15s base.
Advantages
This Osram P21W lamp offers reliable, predictable performance within the rated power and socket type, ensuring straightforward replacement and compatibility with existing P21W/BA15s fittings. The incandescent design provides immediate full-intensity light without electronic drivers, and the BA15s bayonet base secures the lamp in the socket for stable contact under normal driving conditions.
Suitable for
Brake lights
Tail and parking lamps
Turn signal indicators
Side marker and auxiliary signal lighting that accept P21W/BA15s bulbs
Key specifications
Power: 25 W
Base type: BA15s (single-contact bayonet)
Fitting: P21W
Light source: Incandescent filament
Voltage compatibility: standard automotive electrical systems (12 V typical)
How to use
Ensure the vehicle ignition is off and the relevant circuit is de-energized before replacing the bulb. Access the lamp holder from the vehicle’s rear lamp cluster or housing, remove the old bulb by pressing slightly and twisting to release the bayonet, then insert the Osram P21W bulb into the BA15s socket and twist until it locks. Verify correct seating and restore power to check that the bulb functions as intended for brake, tail or indicator operation.
Usage recommendations
Use the Osram P21W 25 W lamp as a direct replacement for like-for-like incandescent P21W/BA15s bulbs. Do not exceed the rated power for the lamp circuit, and replace bulbs in matching pairs where appropriate to maintain uniform light output. Handle the glass with care and avoid contaminating the bulb surface; if the bulb is oily or damaged, replace it to prevent premature failure.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.0081 kg |
| Power consumption (typical) | 21 W |
| Package weight | 20.38 g |
| Diameter | 26.5 mm |
| Package height | 55 mm |
| Package width | 24 mm |
| Power | 25 W |
| Package length | 66 mm |
| Voltage | 12 |
| Luminous flux | 460 lm |
| Fitting/cap type | P21W |
| Length | 52.5 cm |
| Base type | BA15s |
| Vehicle bulb application | Signaling |

## FAQ

### How much does the Osram P21W 25 W car light bulb cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All osram products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized osram service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Osram P21W 25 W car light bulb?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11347123/65798694_large.webp