# Automotive dual-filament light bulb 12V 21/5W pair — Grundig Automotive stop/tail lamp

**URL:** https://aio.lv/en/product--grundig-automotive-2327433--10783903
**Data updated:** 2026-03-12 10:12 (EET)
**Category:** Car Supplies
**Manufacturer:** Grundig Automotive
**Manufacturer code:** 2327433
**EAN:** 8711252327433
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.99 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 2.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--grundig-automotive-2327433--10783903

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.79 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Pair of Grundig Automotive dual-filament automotive light bulbs, 12 V 21/5 W, designed for stop (brake) and tail (position) lamp applications. Each bulb contains two filaments for separate high (21 W) and low (5 W) intensity circuits, suitable for rear combination lamps on passenger vehicles. Simple replacement bulbs for maintaining brake light and tail light functions.

## Long description

Auto light bulb 12V 21/5W pair Grundig Automotive — dual-filament stop/tail lamp. These BAY15d P21/5W bulbs are designed for rear stop and tail lamps and operate at 12 V. The package contains two bulbs suitable for vehicles requiring a dual-filament 21/5W lamp.
Advantages
Dual-filament design provides both brake (21W) and tail (5W) functions in a single bulb, simplifying replacement and ensuring correct fit in BAY15d sockets. The bulbs conform to standard 12 V automotive voltage and are supplied as a pair for convenient installation on both sides of the vehicle.
Suitable for
 Rear brake lights
 Rear tail/parking lights
 Vehicles requiring BAY15d / P21/5W dual-filament bulbs
Key specifications
 Type: P21/5W (BAY15d) dual-filament bulb
 Voltage: 12 V
 Power: 21 W (brake) / 5 W (tail)
 Quantity: 2 bulbs per package
 Brand: Grundig Automotive
 MPN: 2327433
 EAN: 8711252327433
How to use
Switch off the vehicle ignition before replacing bulbs. Remove the rear lamp cover or access panel, extract the old BAY15d bulb by pulling and twisting as required by your lamp design, and insert the new dual-filament P21/5W bulb into the socket ensuring correct alignment. Refit the lamp cover and test both brake and tail light functions to confirm correct installation.
Usage recommendations
Handle bulbs with clean hands or gloves to avoid contaminating the glass. Replace bulbs in matched pairs when possible to maintain even light output and colour on both sides of the vehicle.

## FAQ

### How much does the Automotive dual-filament bulb 12V 21/5W — Grundig Automotive cost, and is it available for purchase?

The price is 2.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 252 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 27.07.2026 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 Grundig Automotive 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 Grundig Automotive 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

## Image

https://aio.lv/img/cache/product/10783903/60033586_large.webp