---
product_id: 597349294
title: "Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W)"
brand: "tek automotive"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 3
url: https://www.desertcart.hr/products/597349294-tek-automotive-582-w21w-bulb-12v-21w-w3x16d-t20-twin
store_origin: HR
region: Croatia
---

# E-marked road legal certified 21W bright single filament W3x16d T20 capless base fit Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W)

**Brand:** tek automotive
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Light up your drive with confidence and style!

## Quick Answers

- **What is this?** Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) by tek automotive
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/597349294-tek-automotive-582-w21w-bulb-12v-21w-w3x16d-t20-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

- • **Road-Ready & E-Marked:** Fully E-approved for UK and EU road legality, guaranteeing MOT compliance.
- • **Twin Pack Convenience:** Two bulbs per pack for easy replacement or a ready spare to avoid downtime.
- • **Universal W3x16d T20 Fit:** Capless base design ensures hassle-free installation across compatible vehicles.
- • **OE Standard Manufacturing:** Built to original equipment specs for consistent performance and reliability.
- • **Brilliant 21W Illumination:** Powerful single filament output for clear brake, indicator, reverse, and tail lights.

## Overview

The Tek Automotive 582 W21W 12V 21W bulb twin pack offers bright, reliable single filament lighting for brake, indicator, reverse, and tail light applications. Featuring a universal W3x16d T20 capless base, these bulbs are E-marked for full UK and EU road legality, ensuring MOT compliance. Manufactured to OE standards, this twin pack provides a convenient, dependable upgrade or replacement solution for your vehicle’s lighting needs.

## Features

- BRIGHT 21W SINGLE FILAMENT OUTPUT - Suitable for reverse, indicator, brake and tail light applications requiring W21W 12V 21W bulbs.
- W21W 582 / 382W FITMENT – W3x16d T20 CAPLESS BASE - Designed for 12V 21W single filament systems. Always confirm bulb marking or vehicle handbook before purchase.
- E-MARKED ROAD LEGAL COMPLIANCE - Fully E approved for legal UK and EU road use, supporting MOT compliance and dependable lighting performance.
- TWIN PACK FOR CONVENIENT REPLACEMENT - Supplied as a practical pair, ideal for replacing one bulb or keeping a spare available.
- MANUFACTURED TO OE SPECIFICATION - Built to standard W21W requirements for reliable installation and consistent output.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B0CK2M5X7C |
| Auto Part Position | Front, Rear |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | 59,896 in Automotive (See Top 100 in Automotive) 109 in Automotive Turn Signal Bulbs |
| Brand Name | Tek Automotive |
| Colour | Clear |
| Customer Reviews | 4.2 4.2 out of 5 stars (37) 4.2 out of 5 stars |
| Fit Type | Universal Fit |
| Included Components | 382W Bulbs x 2 |
| Item Type Name | Car Bulbs |
| Manufacturer | Tek Automotive |
| Manufacturer Part Number | TK382W |
| Package Quantity | 1 |
| Specific Uses For Product | Brake Tail Indicator Reverse Fog DLR Light |
| Unit Count | 2.0 count |
| Voltage | 12 Volts |
| Wattage | 21 watts |

## Product Details

- **Brand:** Tek Automotive
- **Colour:** Clear
- **Item package quantity:** 1
- **Specific uses for product:** Brake Tail Indicator Reverse Fog DLR Light
- **Wattage:** 21 watts

## Images

![Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) - Image 1](https://m.media-amazon.com/images/I/71jsawUxJrL.jpg)
![Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) - Image 2](https://m.media-amazon.com/images/I/819RowosOsL.jpg)
![Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) - Image 3](https://m.media-amazon.com/images/I/81tQFY+qC5L.jpg)
![Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) - Image 4](https://m.media-amazon.com/images/I/61CWb2E+oIL.jpg)
![Tek Automotive 582 W21W Bulb 12V 21W W3x16d T20 – Twin Pack, Brake, Indicator, Reverse, Tail Light, E-Marked Road Legal (382W) - Image 5](https://m.media-amazon.com/images/I/71QQwj-awsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked fine.
*by  on Reviewed in the United Kingdom 16 August 2024*

Purchased for sons Audi A3 2018 to replaced blown bulb. Worked fine no issues.Usual prompt delivery by Amazon.

### ⭐ Poor quality
*by  on Reviewed in the United Kingdom 14 May 2025*

These are poor quality items. They don’t fit the holder properly. Ended up sending them back and buying them from Halfords at half the price.

### ⭐ Wouldn't Work
*by  on Reviewed in the United Kingdom 27 October 2024*

Bought this for my Audi A3 but wouldn't work properly.Would only go on if you pushed bulb to the side.Bought another one from halfords and worked perfectly.

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**Shop now:** [https://www.desertcart.hr/products/597349294-tek-automotive-582-w21w-bulb-12v-21w-w3x16d-t20-twin](https://www.desertcart.hr/products/597349294-tek-automotive-582-w21w-bulb-12v-21w-w3x16d-t20-twin)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-26*