Q1: Will this product fit my vehicle?

A: Our products are designed for a wide range of applications, including cars, trucks, motorcycles, and e-mobility vehicles. However, headlight housing dimensions and internal space vary by vehicle. We recommend checking your original headlight bulb type (such as H4, H7, or D2S) and confirming the available space for retrofitting.
For a precise compatibility assessment, please contact our technical team with your vehicle’s make, model, and year. We’ll be happy to assist you in finding the best solution.

Q2: Is the installation process difficult? Do you provide support?

A: Installation involves retrofitting and may require opening the headlight assembly. While experienced DIY enthusiasts may be able to complete the installation themselves, we strongly recommend professional installation to ensure optimal performance and safety.
We provide general installation guidance and, more importantly, professional technical support. Our team can assist you or your installer throughout the process to help ensure a smooth and successful installation.

Q3: I am a business. Can I order these products with my own branding or custom specifications?

A: Yes, absolutely. We specialize in OEM and ODM services. With our in-house R&D team and flexible production capabilities, we offer a high level of customization.
This includes laser-etching your brand logo on the lenses, developing customized beam patterns based on your optical requirements, and designing exclusive packaging for your brand. Please contact us to discuss your project details.

Q4: You are based in China. How do you handle international shipping, and how long does it take?

A: We have extensive experience in international logistics and export operations. Our team handles all export procedures to ensure a smooth and hassle-free experience for our global clients.
We offer multiple shipping options, including express courier services (such as DHL or FedEx), air freight, and sea freight. Transit times vary depending on the shipping method and destination, but we always prioritize safe and timely delivery.

Q5: Besides this lens, what other parts are required for a complete headlight upgrade?

A: We provide a one-stop sourcing solution for automotive lighting upgrades. In addition to projector lenses, a complete setup may include projector shrouds (bezels), Angel Eyes or Demon Eyes, drivers, wiring harnesses, and other installation accessories.
We can supply a fully compatible, customized kit tailored to your project, simplifying procurement and ensuring all components work seamlessly together.

Q6: What makes Royalin-Lighting products stand out from other options on the market?

A: Our core strength lies in our deep understanding and precise control of automotive lighting technology. We are committed to uncompromising quality, using premium materials and subjecting every product to rigorous testing.
Our flagship Bi-LED projectors deliver ultra-high brightness and a sharp, regulation-compliant cut-off line that maximizes road visibility while minimizing glare to oncoming traffic. When you choose Royalin-Lighting, you are partnering with a manufacturer focused on innovation, reliability, and professional-grade performance.

Q7: What is your warranty policy?

A: We stand behind the quality and durability of our products. All Royalin-Lighting products are covered by a comprehensive warranty against manufacturing defects.
The specific warranty period may vary depending on the product. Please refer to our official warranty policy or contact our customer service team for detailed information.

Q8: Are these projector lenses street legal?

A: Our Bi-LED projector lenses are engineered with a sharp cut-off line and are available in both RHD and LHD configurations to meet international standards and reduce glare for oncoming drivers.
However, regulations regarding aftermarket lighting modifications vary by country and region. We strongly recommend checking your local laws to ensure compliance before installation.

Q9: How do your LED projectors perform in bad weather such as rain or fog?

A: Our LED projectors are designed to perform reliably in all weather conditions. Their high-intensity output and precise optical design provide significantly better visibility than standard halogen bulbs.
For severe conditions, we also offer LED fog light projector lenses with beam patterns and color temperatures specifically optimized for enhanced penetration in rain, snow, and fog, improving safety when visibility is reduced.

Q10: What are the advantages of Bi-LED projectors compared to traditional Bi-Xenon (HID) projectors?

A: Bi-LED technology offers several important advantages:

• Instant-on performance: LEDs reach full brightness immediately, unlike HID systems that require warm-up time.

• Longer lifespan: LED projectors typically last much longer and often match the vehicle’s service life.

• Higher energy efficiency: LEDs consume less power, reducing load on the electrical system—especially beneficial for EVs.

• Simpler installation: Bi-LED projectors integrate the light source into a single unit, eliminating the need for separate bulbs and high-voltage ballasts.

Q11: How are RGB Angel Eyes and Demon Eyes controlled?

A: Our RGB Angel Eyes and Demon Eyes are designed for maximum customization and user convenience. They are usually controlled via a Bluetooth-enabled smartphone app compatible with both iOS and Android devices.
The app allows you to choose from millions of colors, adjust brightness, and select dynamic lighting modes such as fading, strobing, and color cycling—giving you full control over your vehicle’s appearance.

Q12: What is the standard color temperature of your Bi-LED projectors? Can it be customized?

A: Our standard Bi-LED projectors typically feature a color temperature between 5500K and 6500K, producing a clean, daylight-like white light that enhances visibility and reduces eye fatigue.
For OEM and ODM customers, we offer full customization options, including warmer tones (such as 4300K) or other specialized color temperatures to meet specific performance or styling requirements.

Q13: What kind of testing do your products undergo?

A: Every Royalin-Lighting product is validated through rigorous durability and environmental testing to ensure long-term reliability. This includes:

• Vibration testing: Simulates long-term driving conditions to ensure structural integrity and internal stability.

• Waterproof and dustproof testing (IP rating): Ensures reliable sealing against moisture and dust intrusion.

• High/low temperature and thermal shock testing: Products are cycled between extreme temperatures (from approximately -40°C to +105°C) to guarantee stable performance in all climates.

These tests ensure that Royalin-Lighting products deliver not only exceptional brightness, but also outstanding durability and reliability.