---
product_id: 286374075
title: "XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, Hid Headlamp, 66440Cbb-Hcb, Hyper Blue Light, 42V, 35W, 7000K, off-road use only, Duo Box (2 lamps)"
brand: "osram"
price: "€ 253.16"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/286374075-xenarc-cool-blue-boost-d4s-xenon-headlight-lamps-hid-headlamp
store_origin: NL
region: Netherlands
---

# 35W high-efficiency power 7000K hyper blue light 42V optimized voltage XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, Hid Headlamp, 66440Cbb-Hcb, Hyper Blue Light, 42V, 35W, 7000K, off-road use only, Duo Box (2 lamps)

**Brand:** osram
**Price:** € 253.16
**Availability:** ✅ In Stock

## Summary

> 💙 Light up your off-road legacy with XENARC Cool Blue Boost!

## Quick Answers

- **What is this?** XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, Hid Headlamp, 66440Cbb-Hcb, Hyper Blue Light, 42V, 35W, 7000K, off-road use only, Duo Box (2 lamps) by osram
- **How much does it cost?** € 253.16 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/286374075-xenarc-cool-blue-boost-d4s-xenon-headlight-lamps-hid-headlamp)

## 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

- • **Plug & Play Duo Pack:** Two premium D4S xenon lamps in one box—perfect for seamless replacement and guaranteed balanced lighting.
- • **Hyper Blue Brilliance:** Illuminate your off-road adventures with a striking 7000K cool blue xenon glow that turns heads and cuts through darkness.
- • **Power Meets Precision:** 35W power ensures bright, consistent lighting without compromising energy efficiency or lamp longevity.
- • **Gas Composition Innovation:** Advanced inert gas mix achieves high color temperature naturally—no coating needed, just pure, intense light.
- • **Engineered for Off-Road Thrills:** Specially designed for rugged terrain use, delivering reliable performance where it matters most.

## Overview

The OSRAM XENARC Cool Blue Boost D4S xenon headlight lamps deliver a powerful 7000K hyper blue light optimized for off-road use. Operating at 42V and 35W, these lamps feature an advanced inert gas composition for high color temperature without coatings. Sold as a duo pack, they ensure balanced, high-performance illumination designed to elevate your vehicle’s lighting and off-road presence.

## Description

OSRAM XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, Hid Headlamp, 66440Cbb-Hcb, Hyper Blue Light, 42V, 35W, 7000K, off-road use only, Duo Box (2 lamps)

## Features

- OSRAM XENARC COOL BLUE BOOST: Hyper blue xenon light for offroad use
- Right composition of inert gases providing high color temperature without need to coat the lamp
- Color temperature up to 7000 K
- Full portfolio in duo box: equivalent to D1S, D2S, D3S, D4S
- For Off-Road use only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Osram |
| Brand | Osram |
| Model | 66440CBB |
| Product Dimensions | 2.5 x 1.5 x 6 cm; 60 g |
| Item model number | 66440CBB-HCB |
| Manufacturer Part Number | 66440CBB-HCB |
| Position | Right |
| Bulb Type | Xenon |
| Mirror Lighting Type | D4S |
| Voltage | 85 Volts |
| Wattage | 35 watts |
| Item Weight | 60 g |

## Product Details

- **Brand:** Osram
- **Light source type:** Xenon
- **Specific uses for product:** Lamps
- **Colour temperature:** 7000 Kelvin
- **Brightness:** 3200 Lumen

## Images

![XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, Hid Headlamp, 66440Cbb-Hcb, Hyper Blue Light, 42V, 35W, 7000K, off-road use only, Duo Box (2 lamps) - Image 1](https://m.media-amazon.com/images/I/71rbNBF8EjL.jpg)

## Frequently Bought Together

- OSRAM XENARC® Cool Blue Boost, D4S, Xenon Headlight Lamps, 7000K, Duo Box, offroad use only
- Osram Night Breaker LED bulbs - W5W-T10-12V - set of 2 pieces, White
- OSRAM NIGHT BREAKER LASER H3, +150% more brightness, halogen headlight lamp, 64151NL-HCB, 12V, duo box (2 lamps)

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**Shop now:** [https://www.desertcart.nl/products/286374075-xenarc-cool-blue-boost-d4s-xenon-headlight-lamps-hid-headlamp](https://www.desertcart.nl/products/286374075-xenarc-cool-blue-boost-d4s-xenon-headlight-lamps-hid-headlamp)

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