Custom UV & NDT Solutions
Our Customization Capabilities
Wavelength Customization
Light Source Design
Power & Control System
Application-Specific Solutions
Why Choose Sunlonge Custom Service
Fast Technical Response
We provide quick and professional feedback to support urgent project and inspection requirements. Application-Based Solutions
Application-Based Solutions
Our recommendations are tailored to real industrial applications, not just standard products.
Stable OEM/ODM Support
We support customized development and long-term cooperation for global partners.
Strict Quality Assurance
Every product is tested to ensure reliable UV intensity, stability, and durability.
Global Export Experience
We have extensive experience serving international markets with efficient communication and logistics.
Long-Term Partnership Support
We focus on continuous cooperation, providing ongoing technical and service support.
Our Custom Manufacturing Process
SUNLONGE , established in 1999, is headquartered in Hong Kong with factories and an R&D team in mainland China. We specialize in NDT and specialty lamps. Our core expertise includes advanced high-pressure gas discharge technology and precision optical lens and filter combinations.
Requirement Analysis
We collect detailed application needs, technical parameters, and working environment conditions.
Technical Proposal
Our engineers design a customized solution with specifications, structure, and performance targets.
Sample Testing & Feedback
Samples are tested and adjusted based on real application performance and feedback.
Mass Production
After approval, we proceed with standardized production under strict quality control.
Final Inspection & Delivery
Each product undergoes final testing before packaging and global shipment.
Customization Process FAQs
What products does Sunlonge offer?
Sunlonge provides a wide range of detection kits, lamps, dyes, and accessories to meet any diagnostic need.
Can I have a sample order for the lamp?
Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
How do you ship the goods and how long does it take to arrive?
We usually ship by DHL, UPS, or FedEx. It usually takes 5-7 days to arrive. Other airline and sea shipping also optional.
What makes Sunlonge UV fluorescent leak detection different?
Sunlonge UV fluorescent leak detection combines high-performance inspection lamps with specialized fluorescent dyes to quickly and accurately locate hidden leaks within minutes. It is suitable for a wide range of circulating systems, including refrigerant, oil, coolant, fuel, ATF, power steering, hydraulic systems, and automotive body water leaks.
Are Sunlonge dyes safe for OEM and professional systems?
Sunlonge dyes are co-solvent-free and designed for safe use in OEM and professional systems when applied as directed.
Do Sunlonge dyes need to be flushed or removed after inspection?
No. Sunlonge dyes do not require removal after use. They are designed to remain in the system, allowing easy re-inspection of repairs and quick detection of any future leaks.
What's the difference between UV detection light and black light?
The ultraviolet flaw detection lamp is a 365 nm long-wave UV light source designed for large-area inspection. Since its wavelength is outside the visible range of 380–800 nm, it is invisible to the human eye and appears as “black light.” In non-destructive testing applications, it is commonly referred to as a UV inspection lamp or black light.