--- product_id: 48459602 title: "PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs" brand: "bosch" price: "β‚±1502" currency: PHP in_stock: true reviews_count: 13 url: https://www.desertcart.ph/products/48459602-py21w-581-pure-light-halogen-headlight-bulbs-12-v-21 store_origin: PH region: Philippines --- # Long lifespan for fewer replacements 12V 21W bright halogen power BAU15s socket for perfect fit PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs **Brand:** bosch **Price:** β‚±1502 **Availability:** βœ… In Stock ## Summary > πŸ’‘ Illuminate your drive with Bosch Pure Light – never settle for dim moments! ## Quick Answers - **What is this?** PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs by bosch - **How much does it cost?** β‚±1502 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/48459602-py21w-581-pure-light-halogen-headlight-bulbs-12-v-21) ## 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 - β€’ **Trusted Legacy:** Backed by Bosch’s century of automotive lighting expertise for unmatched reliability. - β€’ **Plug & Play Fit:** BAU15s socket ensures hassle-free installation tailored for your vehicle. - β€’ **Dual Pack Advantage:** Change both bulbs simultaneously to maintain consistent lighting and safety. - β€’ **Pure Light Brilliance:** Experience superior clarity with Bosch’s original quality halogen bulbs. - β€’ **Durability Meets Safety:** Long-lasting bulbs reduce replacements and keep you road-ready. ## Overview Bosch PY21W Pure Light halogen headlight bulbs deliver 12V and 21W of reliable, bright yellow light with a BAU15s socket for a perfect vehicle-specific fit. Designed for long service life and easy installation, these bulbs combine original equipment quality with cost-effective performance, ensuring enhanced night visibility and safety. Sold in a pack of two, they are recommended for simultaneous replacement to maintain consistent lighting and comply with safety standards. ## Description Leveraging a century of automotive lighting expertise, Bosch ensures excellent quality. With the Bosch Pure Light headlights, you will discover the world of original quality parts. When it comes to navigating the night, clarity and visibility are paramount. The Bosch Pure Light headlight bulb will reliably do this and more. Thanks to the long lifespan, the bulbs also rarely need replacing. Easy to install, they are the preferred choice for many drivers searching for replacement headlight bulbs. The Pure Light series delivers an excellent balance between cost and performance. Long service life for fewer replacements. Made with high-quality materials and components. The comprehensive Pure Light product line offers suitable vehicle lamps for almost every field of operation. For your safety and to be compliant with the law, Bosch recommends that you always have a box of emergency backup bulbs in your vehicle in the event of failure. Handling bulbs with your fingers may reduce their lifespan. When replacing them, it is advisable to use gloves. This also helps avoid potential burns. If one bulb goes out, it won’t take long for the other one to stop working. For your safety and to save money on repairs, Bosch recommends changing both bulbs simultaneously. Bulbs naturally deteriorate and diminish in intensity over time. Bosch recommends changing them every 2 years on average. ## Features - Pure Light, complete standard series in original equipment quality - PY21W - 12 V, 21 W - BAU15s ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B003JY8268 | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Brand Name | Bosch | | Colour | Yellow, Yellow | | Country Of Origin | Thailand | | Customer Reviews | 4.6 4.6 out of 5 stars (6,054) 4.6 out of 5 stars | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 03165141228854 | | Item Weight | 9 Grams | | Light Source Type | Incandescent | | Manufacturer | Bosch | | Manufacturer Part Number | 1987301018 | | Model Number | 1 987 301 018 | | Oem Equivalent Part Number | 0 | | Package Quantity | 1 | | Specific Uses For Product | Headlight bulb | | Unit Count | 2.0 count | | Upc | 780873641561 | | Voltage | 12 Volts | | Wattage | 21 watts | ## Product Details - **Brand:** Bosch - **Item package quantity:** 1 - **Light source type:** Incandescent - **Specific uses for product:** Headlight bulb - **Wattage:** 21 watts ## Images ![PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs - Image 1](https://m.media-amazon.com/images/I/61oF+4w+UFL.jpg) ![PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs - Image 2](https://m.media-amazon.com/images/I/61n+B81CaqL.jpg) ![PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs - Image 3](https://m.media-amazon.com/images/I/31wnvoOTgzL.jpg) ![PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs - Image 4](https://m.media-amazon.com/images/I/41fhnVCUXJL.jpg) ![PY21W (581) Pure Light Halogen Headlight Bulbs, 12 V 21 W, Original Quality - Socket Type BAU15s - Pack of 2 Replacement Car Light Bulbs - Image 5](https://m.media-amazon.com/images/I/41g9gRDC+KL.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 ### ⭐⭐⭐⭐⭐ Excellent *by on Reviewed in the United Kingdom 7 June 2026* Easy fit and excellent extra light. Well worth the money for the extra disability. ### ⭐⭐⭐⭐⭐ Good quality bulbs *by on Reviewed in the United Kingdom 6 April 2026* Great bulbs,great price,super quick delivery. ### ⭐⭐⭐⭐ Blinking good *by on Reviewed in the United Kingdom 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) Pure Light Car Light Bulbs - 12 V 21 W BAU15s - 2 Bulbs - Bosch P21W (382) Pure Light Car Light Bulbs - 12 V 21 W BA15s - 2 Bulbs - Bosch H7 (477) Pure Light Headlight Bulbs - 12 V 55 W PX26d - 2 Bulbs --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/48459602-py21w-581-pure-light-halogen-headlight-bulbs-12-v-21](https://www.desertcart.ph/products/48459602-py21w-581-pure-light-halogen-headlight-bulbs-12-v-21) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-07-08*