--- product_id: 568991055 title: "Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin" brand: "tek automotive" price: "€ 17.84" currency: EUR in_stock: true category: "Tek Automotive" url: https://www.desertcart.hr/products/568991055-tek-automotive-py21w-indicator-bulbs-581-12v-21w-bau15s-twin store_origin: HR region: Croatia --- # 12V 21W power output Bright amber signal clarity BAU15S offset pin fitment Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin **Brand:** tek automotive **Price:** € 17.84 **Availability:** ✅ In Stock ## Summary > 🚗 Signal with style and safety—never blend in, always stand out! ## Quick Answers - **What is this?** Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin by tek automotive - **How much does it cost?** € 17.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/568991055-tek-automotive-py21w-indicator-bulbs-581-12v-21w-bau15s-twin) ## Best For - tek automotive enthusiasts ## Why This Product - Trusted tek automotive brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Vivid Amber Illumination:** Stand out in traffic with clear, eye-catching turn signals day and night. - • **Twin Pack for Perfect Pairing:** Replace both sides simultaneously for consistent brightness and color harmony. - • **E-Marked Road Legal Compliance:** Drive with confidence—fully approved for UK roads and MOT-ready. - • **Precision BAU15S Offset Pin Fitment:** Secure, hassle-free installation tailored for your vehicle’s exact specs. - • **Universal Front & Rear Compatibility:** Versatile fit for all PY21W indicator sockets—front or back, no compromises. ## Overview Tek Automotive PY21W Indicator Bulbs deliver a powerful 12V 21W amber light with precise BAU15S offset pins, ensuring a perfect fit and legal compliance for UK roads. Supplied as a twin pack, these bulbs guarantee balanced brightness and enhanced visibility for front and rear indicators, making them the smart, reliable upgrade for your vehicle’s signaling system. ## Description Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin : desertcart.co.uk: Automotive ## Features - E-MARKED ROAD LEGAL COMPLIANCE - Fully approved 12V 21W PY21W bulbs with E marking for legal UK road use, suitable for MOT-compliant indicator replacement. - BAU15S OFFSET PIN FITMENT - Designed with the correct offset bayonet pins for secure installation in vehicles requiring 581 / PY21W specification indicator bulbs. - BRIGHT AMBER SIGNAL OUTPUT - Produces clear orange illumination for strong daytime and night-time turn signal visibility, improving signalling clarity in traffic. - DIRECT REPLACEMENT FOR FACTORY FITTED BULBS - Suitable for front or rear indicator units using PY21W BAU15S fitment. Always confirm bulb type in your vehicle handbook before purchase. - TWIN PACK FOR BALANCED REPLACEMENT - Supplied as a matched pair, allowing both sides to be replaced together for consistent colour and brightness. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CJRVVVFG | | Auto Part Position | Front, Rear | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | 560 in Automotive ( See Top 100 in Automotive ) 1 in Automotive Turn Signal Bulbs | | Brand Name | Tek Automotive | | Colour | Amber | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (442) | | Fit Type | Universal Fit | | Included Components | 581 Bulbs x 2 | | Item Type Name | Car Bulb | | Manufacturer | Tek Automotive | | Manufacturer Part Number | TK581BL | | Manufacturer Warranty Description | 1 | | Number of Items | 2 | | Package Quantity | 1 | | Specific Uses For Product | Indicator Light | | Unit Count | 2.0 count | | Voltage | 12 Volts | | Wattage | 21 watts | ## Product Details - **Brand:** Tek Automotive - **Colour:** Amber - **Item package quantity:** 1 - **Specific uses for product:** Indicator Light - **Wattage:** 21 watts ## Images ![Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin - Image 1](https://m.media-amazon.com/images/I/813ONI+suhL.jpg) ![Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin - Image 2](https://m.media-amazon.com/images/I/81tbMQOds6L.jpg) ![Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin - Image 3](https://m.media-amazon.com/images/I/811PM8nU1cL.jpg) ![Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin - Image 4](https://m.media-amazon.com/images/I/81Py45khIjL.jpg) ![Tek Automotive PY21W Indicator Bulbs 581 12V 21W BAU15S Twin Pack | E-Marked Road Legal, Amber, Offset Pin - Image 5](https://m.media-amazon.com/images/I/81g12iDYrwL.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Frequently Bought Together - Tek Automotive 581 PY21W Car Bulb – Indicator Bulbs 12V 21W BAU15S, Orange | PY21W Indicator Bulbs for Turn Signal Car Lights, Bulbs & Indicators - Twin Pack - Tek Automotive P21/5W Bulb, Car Light Bulbs, Brake Light Bulb, 380 P21/5W Car Bulb, Stop and Tail Light Bulbs 12V 21/5W BAY15D Car Bulbs Twin Pack - Tek Automotive 382 P21W Bulb, Car Light Bulbs, Indicator Bulbs, Brake Light Bulb, Reverse Light Bulb, Tail Light Bulb, Rear Fog Light, 382 P21W Car Bulbs, 12V 21W BA15S - Twin Pack --- ## 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.hr/products/568991055-tek-automotive-py21w-indicator-bulbs-581-12v-21w-bau15s-twin](https://www.desertcart.hr/products/568991055-tek-automotive-py21w-indicator-bulbs-581-12v-21w-bau15s-twin) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-15*