---
product_id: 459750511
title: "Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs"
brand: "bosch"
price: "₨43710"
currency: LKR
in_stock: true
reviews_count: 13
category: "Bosch"
url: https://www.desertcart.lk/products/459750511-bosch-py21w-581-led-retrofit-car-light-bulbs-12-v
store_origin: LK
region: Sri Lanka
---

# Ultra long lifespan 12V, 1W power 80% less energy Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs

**Brand:** bosch
**Price:** ₨43710
**Availability:** ✅ In Stock

## Summary

> 🚗 Light up your drive with Bosch brilliance—because your car deserves to be seen and admired!

## Quick Answers

- **What is this?** Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs by bosch
- **How much does it cost?** ₨43710 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/459750511-bosch-py21w-581-led-retrofit-car-light-bulbs-12-v)

## Best For

- bosch enthusiasts

## Why This Product

- Trusted bosch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety Meets Style:** Enhance your vehicle’s visibility and road presence with a sleek, modern glow that commands attention.
- • **Plug & Play Simplicity:** Effortless retrofit design lets you swap bulbs in minutes—no hassle, just instant upgrade.
- • **Long-Lasting Performance:** Experience durability with bulbs engineered to last significantly longer than traditional halogen counterparts.
- • **Brilliantly Bright & Efficient:** Upgrade your turn signals with vivid LED clarity that outshines halogen bulbs while slashing energy use by 80%.
- • **Exclusive Interior & Off-Road Use:** Perfect for interior lighting and off-road adventures—LED Retrofit bulbs bring innovation where it counts.

## Overview

The Bosch PY21W (581) LED Retrofit bulbs deliver a powerful 12V, 1W lighting solution that reduces energy consumption by 80% compared to halogen bulbs. Designed for easy installation, these bulbs offer a longer lifespan and enhanced brightness, ideal for interior and off-road use. With a strong 4.6-star rating and trusted Bosch quality, they transform your vehicle’s lighting with efficiency and style.

## Description

Buy Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs at desertcart UK. Free delivery on eligible orders.

Review: bulbs are an absolute game-changer - I just had to share with you my recent discovery of the Bosch PY21W (581) Magic Effect Car Light Bulbs. These bulbs are an absolute game-changer when it comes to enhancing your car's lighting. With a voltage of 12V and power of 21W, these BAU15s bulbs are not only bright but also incredibly efficient. The magic effect these bulbs create is simply unmatched - it's like giving your car a whole new personality! I recently installed them in my own car, and the difference is truly remarkable. Not only do they provide excellent visibility on the road, but they also add a touch of style and sophistication to my vehicle. I've been receiving compliments left and right, and I have to say, it feels great to stand out on the road. Whether you're looking to upgrade your car's lighting for safety reasons or simply want to give it a unique flair, these Bosch bulbs are the way to go. Trust me, you won't be disappointed! So why wait? Treat your car to the Bosch PY21W (581) Magic Effect Car Light Bulbs today and experience the difference for yourself.
Review: Works as expected. Delivery good. - Good price at £2.71 for two bulbs delivered well by desertcart. One bulb of these indicators used immediately & works.

## Features

- For brighter traffic lights
- Signal your movements with brighter turn signal lights for greater safety
- Replacing a halogen bulb with a retrofit LED bulb is very simple
- Very long lifespan
- Energy consumption reduced by 80 percent compared to the halogen technology
- Not ECE approved: LED Retrofit technology is not approved by the European regulation, LED Retrofit bulbs are only allowed for interior lighting and off-road driving
- Quantity: 2 bulbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08QZV9874 |
| Brand | Bosch |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,875) |
| Date First Available | 18 Dec. 2020 |
| Item model number | 1987301520 |
| Manufacturer | Bosch |
| Manufacturer part number | 1987301520 |
| Position | Rear |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Bosch
- **Brightness:** 100 lumen
- **Light source type:** LED
- **Specific uses for product:** Interior Light
- **Wattage:** 1 watts

## Images

![Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Image 1](https://m.media-amazon.com/images/I/61mnPvKNbTL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is the glass amber coloured or is the amber a covering over the bulb?**
A: I think the bulb was amber in colour. Sorry it's so long ago since I changed them.

**Q: Is the glass amber or does it have an amber film? Thanks**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ bulbs are an absolute game-changer
*by C***C on 5 July 2024*

I just had to share with you my recent discovery of the Bosch PY21W (581) Magic Effect Car Light Bulbs. These bulbs are an absolute game-changer when it comes to enhancing your car's lighting. With a voltage of 12V and power of 21W, these BAU15s bulbs are not only bright but also incredibly efficient. The magic effect these bulbs create is simply unmatched - it's like giving your car a whole new personality! I recently installed them in my own car, and the difference is truly remarkable. Not only do they provide excellent visibility on the road, but they also add a touch of style and sophistication to my vehicle. I've been receiving compliments left and right, and I have to say, it feels great to stand out on the road. Whether you're looking to upgrade your car's lighting for safety reasons or simply want to give it a unique flair, these Bosch bulbs are the way to go. Trust me, you won't be disappointed! So why wait? Treat your car to the Bosch PY21W (581) Magic Effect Car Light Bulbs today and experience the difference for yourself.

### ⭐⭐⭐⭐⭐ Works as expected. Delivery good.
*by S***E on 18 July 2025*

Good price at £2.71 for two bulbs delivered well by Amazon. One bulb of these indicators used immediately & works.

### ⭐⭐⭐⭐ Blinking good
*by J***P on 7 July 2025*

The bulbs fit and work as good as any original parts. We bought a pack of two for our Peugeot 306 1999 model. They blinking good value for money.

## Frequently Bought Together

- Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs
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- Bosch WY5W (501A) Pure Light Car Light Bulbs - 12 V 5 W W2,1x9,5d - 2 Bulbs

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-17*