---
product_id: 309602679
title: "OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece)"
brand: "osram"
price: "€ 42.19"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.nl/products/309602679-osram-led-premium-retrofit-sv8-5-8-41mm-c5w-interior
store_origin: NL
region: Netherlands
---

# 80% more energy efficient 100% more light output 6000K cool white daylight OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece)

**Brand:** osram
**Price:** € 42.19
**Availability:** ✅ In Stock

## Summary

> 💡 Upgrade your ride’s vibe with OSRAM’s premium cool white brilliance!

## Quick Answers

- **What is this?** OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece) by osram
- **How much does it cost?** € 42.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/309602679-osram-led-premium-retrofit-sv8-5-8-41mm-c5w-interior)

## Best For

- osram enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Smart Efficiency:** Save energy and reduce your carbon footprint with up to 80% less power consumption than conventional bulbs.
- • **Crisp Cool White Glow:** Experience a modern 6000K daylight color that transforms your car’s ambiance with sleek, stylish lighting.
- • **Double the Brightness:** Illuminate your interior with 100% more light than standard bulbs, making every drive feel premium.
- • **Precision Fit 41mm Length:** Designed to perfectly retrofit your vehicle’s interior festoon light socket for hassle-free installation.
- • **Speckle-Free Optical Diffuser:** Enjoy smooth, uniform illumination without distracting light spots, elevating your car’s interior aesthetics.

## Overview

The OSRAM LED Premium Retrofit SV8.5-8 41mm (model 6499CW-01B) is a genuine OEM-quality LED festoon bulb designed for vehicle interiors. Delivering 100% more light with a crisp 6000K cool white color, it uses advanced optical diffuser technology for uniform illumination and consumes up to 80% less energy than standard bulbs. Its precise 41mm length ensures a perfect retrofit fit, making it the smart, stylish upgrade for millennial professionals seeking both efficiency and modern design in automotive lighting.

## Description

OSRAM is the number one automotive light bulb manufacturer and number one supplier to all the vehicle manufacturers worldwide.OSRAM is the leading supplier of LED technology to new vehicles and have recently introduced the new range of festoon interior light LED retrofit bulbs. These will cause a stir among those car drivers interested in design and tuning. Thanks to the latest optical diffuser material, they offer excellent homogenous LED light and do not emit speckled light. The colour temperature of 6000 Kelvin creates a completely new type of light effect. In addition to that, the retrofit lamps use up to 80% less energy in comparison to conventional bulbs - and provide 100% more style.Please check your car handbook for suitability or check the OSRAM online application guide. The 6499CW-01B is designed to replace the longer length interior festoon bulb - 41mm in length. Please ensure that you check that this is the correct size. Alternative Osram listings are available for the shorter sizes (6498 -36mm long and 6497 - 31mm long LED replacements for festoon bulbs)

## Features

- Genuine Osram original equipment quality
- Up to 100% more light than a standard bulb
- 6000K Cool White Daylight colour appearance - 41mm in length
- Up to 80% more environmentally friendly than standard bulbs
- Latest optical diffuser material gives the best light performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Osram Ltd |
| Brand | Osram |
| Model | 6499CW-01B |
| Product Dimensions | 3.3 x 3.3 x 8.7 cm; 10 g |
| Item model number | 6499CW |
| Manufacturer Part Number | 6499CW-01B |
| Position | Inner |
| Bulb Type | LED |
| Mirror Lighting Type | C5W |
| Voltage | 21 Volts |
| Wattage | 1 watts |
| Item Weight | 10 g |

## Product Details

- **Brand:** Osram
- **Light source type:** LED
- **Specific uses for product:** Interior Light
- **Colour temperature:** 6000 Kelvin
- **Brightness:** 500 lumen

## Images

![OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece) - Image 1](https://m.media-amazon.com/images/I/71bu29rG13L.jpg)
![OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece) - Image 2](https://m.media-amazon.com/images/I/31WvTUYncHL.jpg)
![OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece) - Image 3](https://m.media-amazon.com/images/I/31xQzX7MgtL.jpg)
![OSRAM LED Premium Retrofit SV8.5-8 41mm, C5W, interior lights, 6499CW-01B, Cool White, 12V, single blister (1 piece) - Image 4](https://m.media-amazon.com/images/I/31XkdfMF3gL.jpg)

## Customer Reviews

### ⭐ 







  
  
    Brought up bulb failure warning. Wrong resistance😡
  

*by M***I on Reviewed in the United Kingdom on 20 September 2019*

Amazon said this would fit my car and Osram do make good bulbs. However when I fitted a pair of these in place of my halogen rear number plate bulbs in my 2003 Mercedes w220 S500 the problems started immediately.One worked fine but the other just flickered a few times and that was it. Then later that same evening the one that worked brought up a bulb failure warning on my dash! I called my friend who’s a trained Mercedes dealer mechanic and he explained that these Osram LED bulbs are the wrong resistance.I also tried them in my 2006 VW Jetta which is a newer and far less comlex car. Same story.What a waste of time and money.

### ⭐⭐⭐ 







  
  
    Not as advertised
  

*by F***X on Reviewed in the United Kingdom on 2 December 2019*

Very bright, but not what I would call warm white. Not white light, but not warm. I've since replaced with warm light SMD LEDs from China.

### ⭐⭐⭐⭐⭐ 







  
  
    WOW! I just installed these LEDriving bulbs in my ...
  

*by @***S on Reviewed in the United Kingdom on 2 May 2016*

WOW! I just installed these LEDriving bulbs  in my license plate bulb holders and I cannot believe how much nicer (and pure white) the 4000K light is. The light spread is even (remarkably so for an LED) and the build quality exceeds that of the standard incandescent bulb I replaced.All in all, an expensive but totally worth it lighting upgrade for your car. Picture attached (bulb on the right is the LED)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*