---
product_id: 359427950
title: "578 LED Festoon Bulb, 42mm 41mm 1.65 Inch Festoon DE3425 DE3423 211-2 LED, 12V 33SMD White Light 42mm Festoon Bulbs for Car Interior Dome Map Courtesy Trunk Light 212-2 Led, 4pcs"
brand: "xnourney"
price: "₨7092"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/359427950-578-led-festoon-bulb-42mm-41mm-1-65-inch-festoon
store_origin: LK
region: Sri Lanka
---

# 12V stable constant current driver 33 high-efficiency SMD LEDs Aluminum heat sink for superior cooling 578 LED Festoon Bulb, 42mm 41mm 1.65 Inch Festoon DE3425 DE3423 211-2 LED, 12V 33SMD White Light 42mm Festoon Bulbs for Car Interior Dome Map Courtesy Trunk Light 212-2 Led, 4pcs

**Brand:** xnourney
**Price:** ₨7092
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your ride with brilliance and confidence!

## Quick Answers

- **What is this?** 578 LED Festoon Bulb, 42mm 41mm 1.65 Inch Festoon DE3425 DE3423 211-2 LED, 12V 33SMD White Light 42mm Festoon Bulbs for Car Interior Dome Map Courtesy Trunk Light 212-2 Led, 4pcs by xnourney
- **How much does it cost?** ₨7092 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/359427950-578-led-festoon-bulb-42mm-41mm-1-65-inch-festoon)

## Best For

- xnourney enthusiasts

## Why This Product

- Trusted xnourney brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Can-Bus Error Free:** Intelligent IC driver guarantees seamless integration with most vehicle systems—no annoying dashboard errors
- • **Long-Lasting Durability:** Aluminum body with heat dissipation grooves ensures extended lifespan and vibration resistance
- • **Multiple Sizes Available:** Choose from 31mm, 36mm, 39mm, or 42mm to perfectly match your car’s interior lighting needs
- • **Plug & Play Compatibility:** Fits 578, 211-2, 212-2, DE3423, DE3425 & more—no polarity hassle
- • **Ultra-Bright Illumination:** 33 premium 3014 chipset LEDs deliver crisp, white light for flawless visibility

## Overview

The 578 LED Festoon Bulb by Xnourney is a high-performance 42mm interior car light featuring 33 SMD 3014 LEDs, a built-in constant current IC driver for Can-Bus compatibility, and an aluminum heat sink for optimal cooling and durability. Designed for easy plug-and-play installation across multiple vehicle models, it offers bright, consistent white light with enhanced vibration resistance and multiple size options to fit your exact needs.

## Description

Full description not available

## Features

- 【Wide Application】 42mm led festoon bulbs fit for 578, 211-2, 212-2, 214-2, 214-2, DE3423, DE3425, 569, 6411 etc. Widely used as interior dome light, map light. No polarity, plug and play.
- 【Quality Performance】Built-in intelligent constant current IC driver, Can-bus error free for most vehicles, stable input current, quicker reaction. Upgrade aluminum material strong body, high vibration resistant. Curve groove design heat sink for better heat dissipation, ensure the secure temperature range, longer lifespan.
- 【Quality Chips】4pcs 578 Led Festoon bulbs with upgrade 33pcs 3014 Chipset, high quality material Copper bracket, gold wire solder. High brightness, low light attenuation, good heat dissipation, consistent brightness light.
- 【 4 size for choice】4pcs 39mm 6418 festoon led car bulbs. We have 4 size for your choice: 31mm, 36mm, 39mm, 42mm. Please check your vehicles owner’s manual or measure the original bulb length to confirm the size before purchase.
- 【 Friendly Service】No hassle for refund or return in case of any quality defectiveness. Any questions, please feel free to contact us via your order number. We will reply within 24 hours to provide make satisfactory solution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Xnourney |
| Brand | Xnourney |
| Product Dimensions | 2.79 x 1.02 x 3.05 cm; 20 g |
| Manufacturer reference | 42mm-33-4pcs |
| Manufacturer part number | 42mm-33-4pcs |
| Position | Inner |
| Voltage | 12 Volts |
| Item Weight | 20 g |

## Product Details

- **Brand:** Xnourney
- **Light source type:** LED
- **Brightness:** 300 Lumen
- **Wattage:** 2 watts
- **Item package quantity:** 4

## Images

![578 LED Festoon Bulb, 42mm 41mm 1.65 Inch Festoon DE3425 DE3423 211-2 LED, 12V 33SMD White Light 42mm Festoon Bulbs for Car Interior Dome Map Courtesy Trunk Light 212-2 Led, 4pcs - Image 1](https://m.media-amazon.com/images/I/71wbY8lVnZL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- 578 LED Festoon Bulb, 42mm 41mm 1.65 Inch Festoon DE3425 DE3423 211-2 LED, 12V 33SMD White Light 42mm Festoon Bulbs for Car Interior Dome Map Courtesy Trunk Light 212-2 Led, 4pcs
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**Shop now:** [https://www.desertcart.lk/products/359427950-578-led-festoon-bulb-42mm-41mm-1-65-inch-festoon](https://www.desertcart.lk/products/359427950-578-led-festoon-bulb-42mm-41mm-1-65-inch-festoon)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-06*