Company Profile
About Us
Professional NDT & Specialty Lighting Manufacturer
SUNLONGE INTERNATIONAL CO., LIMITED was established in 1999 and is headquartered in Hong Kong, with manufacturing facilities in mainland China and a dedicated in-house R&D team. We specialize in NDT equipment and various types of specialty lamps, including UV NDT lamps, fluorescent leak detection lamps, UV testing and laboratory lamps, as well as forensic and security inspection lamps and related spare parts. Our products are supplied to customers worldwide, including the United States.
We believe in building long-term partnerships with our customers. In addition to providing reliable products, we also support our clients with sourcing, communication, packaging, and branding, aiming to make cooperation smooth and efficient.
Guided by a customer-focused and mutually beneficial approach, we sincerely look forward to working with partners around the world and growing together.
Our History
Why choose Sunlonge？
HID Technology
15+ years of expertise delivering precise, stable light control for reliable inspections.
High UV Intensity + Large Coverage
High irradiance with large, uniform illumination. Ideal for fast FPI and MPI inspection.
Micro-Defect Detection
Reliably detects particles or scratches < 1 μm. Reduces missed defects in high-sensitivity NDT.
Aviation Standard Compliance
Meets Rolls-Royce RRES90061 and other international aviation standards. Trusted for aerospace and high-end manufacturing.
Custom & Non-Standard Options
Customized light sources and non-standard production available. Adapts to special wavelengths, sizes, or environments.
Certifications – Quality Assured
