--- product_id: 568991055 title: "Tek Automotive 581 PY21W Indicator Bulbs 12V 21W BAU15S – E-Marked Road Legal Amber, Offset Pin, Twin Pack" brand: "tek automotive" price: "629293₫" currency: VND in_stock: true reviews_count: 8 category: "Tek Automotive" url: https://www.desertcart.vn/products/568991055-tek-automotive-581-py21w-indicator-bulbs-12v-21w-bau15s-e store_origin: VN region: Vietnam --- # 12V power for consistent brightness 21W wattage for vivid amber glow BAU15S offset pin for perfect fit Tek Automotive 581 PY21W Indicator Bulbs 12V 21W BAU15S – E-Marked Road Legal Amber, Offset Pin, Twin Pack **Brand:** tek automotive **Price:** 629293₫ **Availability:** ✅ In Stock ## Summary > 🚗 Signal with style and safety—never blend in, always stand out! ## Quick Answers - **What is this?** Tek Automotive 581 PY21W Indicator Bulbs 12V 21W BAU15S – E-Marked Road Legal Amber, Offset Pin, Twin Pack by tek automotive - **How much does it cost?** 629293₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/568991055-tek-automotive-581-py21w-indicator-bulbs-12v-21w-bau15s-e) ## 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 - • **Twin Pack for Symmetry:** Replace both sides simultaneously for balanced, uniform signaling. - • **Direct Factory Replacement:** Effortless swap-in for front or rear indicators—no guesswork, just perfect fit. - • **Vibrant Amber Signal Output:** Stand out in traffic with bright, clear orange illumination day and night. - • **E-Marked Road Legal Compliance:** Drive with confidence—fully approved for UK roads and MOT-ready. - • **Precision BAU15S Offset Pin Fitment:** Seamless installation with exact offset pins designed for your vehicle. ## Overview The Tek Automotive 581 PY21W Indicator Bulbs deliver a legally compliant, high-visibility amber signal with 12V and 21W power. Featuring BAU15S offset pins for precise fitment, these twin-pack bulbs ensure balanced, bright signaling for front or rear indicators, making them the perfect MOT-ready upgrade for your vehicle. ## Description Tek Automotive 581 PY21W Indicator Bulbs 12V 21W BAU15S – E-Marked Road Legal Amber, Offset Pin, Twin Pack : desertcart.co.uk: Automotive Review: Good bulb - Lovely orange color ,my old ones were faded a mot advisor , only problem with these indicator bulbs they keep going on and off ( joking) 🙃 Review: Great value Great fit - Great value and a perfect fit for my Mark 7 Fiesta. Love the deep orange colour, they look quite at home in my back light housings. Easy to remove the old ones before then putting these in. The only frustration is having to remove the whole light unit to access the bulb housings, so hope these last a long time! ## 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 | 1,362 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 (324) | | 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 | | 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 581 PY21W Indicator Bulbs 12V 21W BAU15S – E-Marked Road Legal Amber, Offset Pin, Twin Pack - Image 1](https://m.media-amazon.com/images/I/71bOJKWmGPL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good bulb *by K***R on 20 March 2026* Lovely orange color ,my old ones were faded a mot advisor , only problem with these indicator bulbs they keep going on and off ( joking) 🙃 ### ⭐⭐⭐⭐⭐ Great value Great fit *by R***E on 12 July 2025* Great value and a perfect fit for my Mark 7 Fiesta. Love the deep orange colour, they look quite at home in my back light housings. Easy to remove the old ones before then putting these in. The only frustration is having to remove the whole light unit to access the bulb housings, so hope these last a long time! ### ⭐⭐⭐⭐ Make sure you don't need both bulbs when ordering or order more *by S***L on 15 January 2026* Does an adequate job but one of the bulbs was broken ## 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.vn/products/568991055-tek-automotive-581-py21w-indicator-bulbs-12v-21w-bau15s-e](https://www.desertcart.vn/products/568991055-tek-automotive-581-py21w-indicator-bulbs-12v-21w-bau15s-e) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-22*