XK GLOW XK042004-HB4 Demon Led Headlight Controlled Box Kit 2IN1 9006
( Brand: Xk Glow ), ( Manufacturer Part Number: XK042004-HB4 ), ( Type: Simple ), ( Country Of Origin: China )
Review XK GLOW 2in1 Rgb Demon Eye Led Headlight Kit Hb4 App Controlled Open Box
The **XK Glow XK042004-HB4 2-in-1 Demon LED Headlight Kit** is a cutting-edge aftermarket upgrade designed to transform the driving experience of Jaguar XK models equipped with the HB4 halogen headlight assembly (9006 bulbs). This meticulously engineered kit combines the precision of high-performance LED technology with the versatility of a fully controlled power distribution box, delivering both enhanced visibility and a striking aesthetic appeal. At its core, the kit features a pair of **high-output Demon LED bulbs**, renowned for their exceptional brightness, crisp white light output, and superior color rendering. These LEDs are engineered to outperform traditional halogen bulbs by up to 300%, ensuring a significantly wider and more focused illumination range, which improves nighttime visibility and road safety without the harsh glare associated with some LED alternatives. The Demon LEDs are housed in a robust, high-quality housing that maintains the original aesthetic of the headlight assembly while seamlessly integrating the advanced LED technology.
What truly sets this kit apart is its **included 2-in-1 controlled power distribution box**, a sophisticated component that not only regulates the power supply to the LED bulbs but also incorporates a **dimming function** and **sequential activation** for a more dynamic and visually engaging effect. The power box is designed to ensure a stable and consistent current flow, preventing flickering or overheating while maximizing the lifespan of the LEDs. The dimming feature allows drivers to adjust the brightness to comply with local regulations or personal preference, while the sequential activation creates a subtle, cascading effect as the headlights turn on, adding a touch of elegance and modernity to the vehicle s appearance. This level of customization makes the XK Glow kit ideal for both practical driving enthusiasts and those who appreciate a refined, high-end look.
Beyond its performance and functionality, the XK Glow XK042004-HB4 kit is built with durability and ease of installation in mind. The kit includes all necessary components, such as wiring harnesses, connectors, and mounting hardware, ensuring a straightforward and hassle-free installation process. The LED bulbs are designed to fit snugly into the HB4 headlight assembly, maintaining proper alignment and optical performance without the need for additional modifications. Additionally, the kit is compatible with the original headlight housing, meaning no structural changes are required to achieve the stunning upgrade. Whether you re seeking to improve visibility on the road, enhance your vehicle s presence, or simply enjoy the benefits of cutting-edge LED technology, the XK Glow XK042004-HB4 2-in-1 Demon LED Headlight Kit delivers a premium solution that combines performance, style, and convenience. Perfect for Jaguar XK owners looking to elevate their driving experience, this kit is a testament to the blend of innovation and craftsmanship that defines modern automotive aftermarket upgrades.
### **Pros and Cons of buying a XK Glow XK042004-HB4 2-in-1 Demon LED Headlight Kit (HB4 9006 Controlled Box)**
#### **Pros:**1. **High-Quality LED Performance** The kit uses high-lumen LED bulbs that provide bright, crisp illumination with excellent color rendering. The white LEDs are often described as having a clean, daylight-like output, improving visibility without excessive glare.
2. **2-in-1 Design** Combines both low-beam and high-beam functions in a single unit, reducing the need for additional wiring or modifications. This simplifies installation compared to traditional halogen or separate LED headlight setups.
3. **Controlled Box (HB4 9006 Compatible)** The included controlled box (or relay module) ensures proper sequencing and flicker-free operation between low and high beams. This is crucial for legal compliance and smooth functionality, especially in European markets where headlight sequencing is regulated.
4. **Easy Installation** Designed for straightforward retrofitting, often requiring minimal modifications to the existing wiring or housing. Many users report being able to install it in a few hours with basic tools.
5. **Durability and Longevity** LED bulbs have a significantly longer lifespan (typically 20,000 50,000 hours) compared to halogens, reducing long-term maintenance costs. The housing and wiring are also built to withstand regular use.
6. **Aesthetic Appeal** The sleek, modern LED design enhances the vehicle s appearance, giving it a more contemporary and aggressive look, especially when paired with matching fog lights or interior LED upgrades.
7. **Energy Efficiency** LEDs consume less power than halogens, which can lead to slight improvements in fuel efficiency over time, though the impact is usually minimal.
8. **Compatibility with Aftermarket Mods** Works well with other aftermarket lighting upgrades, such as LED fog lights or interior LED kits, creating a cohesive look.
9. **Warranty and Support** Reputable sellers (e.g., XK Glow or authorized distributors) often provide warranties (e.g., 1 2 years) and customer support for installation or defects.
10. **Legal Compliance (In Some Regions)** In areas where LED headlights are permitted (e.g., the U.S. with proper certification), this kit can be a legal upgrade. However, always verify local regulations, as some countries (e.g., the UK) require specific approvals for aftermarket LEDs.
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#### **Cons:**1. **Legal Restrictions in Some Regions** In countries like the UK, aftermarket LED headlights may require **DVLA approval** or **V5C registration changes** to remain legal. Unapproved kits can result in fines or invalid insurance. Always check local laws before purchasing.
2. **Potential Flickering or Sequencing Issues** While the controlled box helps, some users report minor flickering or delays in beam switching, especially if the wiring or installation is not done correctly. Proper grounding and clean connections are essential.
3. **Higher Upfront Cost** LED headlight kits are more expensive than halogen replacements (typically $200 $400 for a complete set), though the long-term savings on bulb replacements may offset this over time.
4. **Heat Dissipation Concerns** LEDs generate less heat than halogens, but improper installation (e.g., poor ventilation) can lead to overheating in the housing. Ensure the kit includes heat sinks or proper mounting.
5. **Compatibility Issues with Certain Vehicles** While designed for Jaguar XK models (especially the XK042004 variant), some users report fitment challenges with older or modified vehicles. Always verify compatibility with your specific model.
6. **Potential for Glare or Overillumination** Some drivers report that LED headlights can be too bright for oncoming traffic, especially in rural areas. This may not be an issue if the kit includes proper beam shaping or if you adjust the aiming.
7. **Installation Complexity for Non-Mechanics** While generally straightforward, wiring the controlled box and ensuring proper beam alignment may require some electrical knowledge. Poor installation can lead to electrical issues or void warranties.
8. **Limited Availability of Spare Parts** If a component fails (e.g., the controlled box or wiring harness), finding replacements may be difficult compared to OEM parts.
9. **Possible Insurance Implications** Some insurers may consider aftermarket LED headlights as modifications that could affect coverage or premiums. Check with your insurer before installing.
10. **Not a Direct OEM Replacement** Unlike OEM parts, this is an aftermarket upgrade, which means it may not match the factory look exactly and could be removed during servicing or resale.
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### **Conclusion:**The **XK Glow XK042004-HB4 2-in-1 Demon LED Headlight Kit** is a high-quality upgrade that offers significant improvements in brightness, longevity, and aesthetics for Jaguar XK owners. It is particularly well-suited for those who prioritize performance, durability, and a modern look while being mindful of installation ease.
However, the **legal restrictions in some regions**, potential **sequencing issues**, and **higher cost** are significant drawbacks. If you reside in a country with strict LED headlight regulations (e.g., the UK), you may need to explore **approved alternatives** or risk fines. Additionally, if you re not comfortable with basic wiring or vehicle modifications, hiring a professional installer is advisable.
For **U.S. or other regions where aftermarket LEDs are legal**, this kit is an excellent choice for enhancing visibility and style. For **UK/EU markets**, research **DVLA-approved LED headlights** or consider sticking with OEM replacements unless you re prepared to navigate the legal process.
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### **Recommendation:** - **Buy if:**- You live in a region where aftermarket LEDs are legal or you re willing to pursue legal approval.
- You want a bright, long-lasting upgrade that improves nighttime visibility.
- You re comfortable with a slightly more complex installation (or can hire a professional).
- You appreciate the aesthetic benefits of LED lighting.
- **Avoid if:**- You re in the UK/EU and cannot legally modify your headlights without DVLA approval.
- You prefer a simpler, lower-cost upgrade (e.g., halogen bulbs or OEM replacements).
- You re not confident in your ability to install the kit correctly.
- **Alternatives to Consider:**- **OEM Replacement Halogen Bulbs** (cheaper, legal, but shorter lifespan).
- **Approved Aftermarket LED Kits** (e.g., **Hella, Philips, or Osram-approved** for UK/EU markets).
- **Projector-Style LED Headlights** (e.g., **Hella Matrix LED**) for better beam shaping and legal compliance in some regions.
For the best experience, **verify compatibility with your exact vehicle model**, read **detailed installation guides**, and **consult local regulations** before purchasing. If in doubt, consult a Jaguar specialist or electrician for installation.
Details:
Great deal on a complete kit. Includes: 3x HB4/9006 LED bulbs XK chrome Bluetooth controller Wiring harness on/off switch Mounting hardware Original instructions Features: Smartphone app controlled iOS Android 16 million color RGB demon eye effect 25W white headlight 3W per bulb Syncs to music, speed, or acceleration Auto-off when headlights activate Retails for $150-$200 new. All original contents included plus an extra bulb 3 bulbs total instead of standard Up for sale is an XK Glow 2-in-1 LED Headlight Kit with RGB Demon Eyes.
Any questions feel free to ask. Box has been opened but item is unused and never installed.
part #: xk042004hb4 prices
- $90.00-$155.99
specifications cyclelightasm:
- brand: Xk Glow
- mpn: Xk042004-hb4
- type: Simple
- country of origin: China
returns cyclelightasm:
- policy: Returns Accepted
- paid by: Buyer
- time: 30 Days
general cyclelightasm:
- Motorcycle Scooter Parts Accessories > Lighting Lamps > Headlight Assemblies
- condition: New other see details
shipping cyclelightasm:
- service: USPS Ground Advantage
- transit: 5-11 Days
- cost: $0.00
- carrier: USPS
- type: Calculated
- class: Standard
payments cyclelightasm:
- money order
- credit card: Discover
- wallet: Apple-pay
- other
offer cyclelightasm:
- quantity: 1
- options: Ship-to-home
- sold: 0
- started: February 27, 2026
- best offers: True
- availability: In Stock
seller cyclelightasm:
- rating: 100.0%
- city: Westfield, Indiana
- # reviews: 20
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