--- product_id: 459750511 title: "Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs" brand: "bosch" price: "€ 79.18" currency: EUR in_stock: true reviews_count: 7 category: "Bosch" url: https://www.desertcart.sk/products/459750511-bosch-py21w-581-led-retrofit-car-light-bulbs-12-v store_origin: SK region: Slovakia --- # ultra long lifespan 80% less energy consumption 100 lumens bright amber glow Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs **Brand:** bosch **Price:** € 79.18 **Availability:** ✅ In Stock ## Summary > 🚗 Light up your drive with Bosch brilliance! ## 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?** € 79.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/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 - • **Style Meets Function:** Modern amber LED lighting adds a sleek, professional touch to your vehicle’s rear signals. - • **Durability That Lasts:** Experience a long-lasting LED lifespan that outperforms halogen alternatives. - • **Plug & Play Simplicity:** Effortless retrofit design makes swapping bulbs a breeze—no mechanic needed. - • **Energy-Smart Innovation:** Slash your car’s energy use by 80% compared to traditional halogen bulbs. - • **Brighter Signals, Safer Drives:** Upgrade your turn signals with vivid amber LEDs for enhanced road visibility. ## Overview Bosch PY21W LED Retrofit Car Light Bulbs deliver 100 lumens of bright amber light at just 1 watt, reducing energy consumption by 80% compared to halogen bulbs. Designed for easy retrofit installation, these bulbs offer a long lifespan and enhanced signal visibility, ideal for interior and off-road use. Note: Not ECE approved for on-road use in Europe. ## 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: Faulty bulbs. Not worth it. - These bulbs faulty and don’t work. Looks like a polarity issues or they are broken. Review: No Canbus erros Seat Leon ST 2014 - Only has side led's it doesn't have direct facing led's but they seem to work. Not as bright as the normal bulbs but visible. ## 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 | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | 9,951 in Automotive ( See Top 100 in Automotive ) 5 in Car Angel Eyes | | Brand | Bosch | | Brand Name | Bosch | | Brightness | 100 lumen | | Colour | Amber | | Customer Reviews | 3.4 out of 5 stars 40 Reviews | | Fit Type | Vehicle Specific Fit | | Item package quantity | 1 | | Light Output Maximum | 100 Lumens | | Light Source Type | LED | | Light source type | LED | | Manufacturer | Bosch | | Manufacturer Part Number | 1987301520 | | Model Number | 1987301520 | | Number of Items | 1 | | Package Quantity | 1 | | Part Interchange Info | replacement | | Specific Uses For Product | Interior Light | | Specific uses for product | Interior Light | | Unit Count | 1.0 count | | Voltage | 12 Volts | | Wattage | 1 watts | ## 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) ![Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Image 2](https://m.media-amazon.com/images/I/31qDu1sAfbL.jpg) ![Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Image 3](https://m.media-amazon.com/images/I/51LRy0dwk4L.jpg) ![Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Image 4](https://m.media-amazon.com/images/I/315ww7LMemL.jpg) ![Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Image 5](https://m.media-amazon.com/images/I/31PxXwoxyqL.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 ### ⭐ Faulty bulbs. Not worth it. *by A***V on 22 October 2025* These bulbs faulty and don’t work. Looks like a polarity issues or they are broken. ### ⭐⭐⭐⭐ No Canbus erros Seat Leon ST 2014 *by M***T on 1 June 2023* Only has side led's it doesn't have direct facing led's but they seem to work. Not as bright as the normal bulbs but visible. ### ⭐ Qualità inaccettabile *by F***. on 15 October 2023* Totalmente al di sotto delle spettative create dal marchio che portano. La luminosità è incredibilmente bassa, ben al di sotto di molte cineserie dal prezzo più basso. Assolutamente da non comprare. ## Frequently Bought Together - Bosch -PY21W (- 581) LED Retrofit Car Light Bulbs - 12 V 1 W BAU15s - 2 Bulbs - Bosch P21W (382) Pure Light Car Light Bulbs - 12 V 21 W BA15s - 2 Bulbs - Bosch WY5W (501A) Pure Light Car Light Bulbs - 12 V 5 W W2,1x9,5d - 2 Bulbs --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/459750511-bosch-py21w-581-led-retrofit-car-light-bulbs-12-v](https://www.desertcart.sk/products/459750511-bosch-py21w-581-led-retrofit-car-light-bulbs-12-v) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-09-09*