R&D Technology

R&D Technology: Defining New Standards for Mid-to-High End Power Supplies through Innovation

In the power adapter industry, technological depth determines product quality. Since its establishment, Shenzhen Keyulong Technology Co., Ltd. has always regarded R&D as the core driving force of the company. Adhering to the philosophy of "long-termism" and "technology for good", the company invests 12% of its annual revenue into R&D. It has a core team of 15 power engineers, with an average industry experience of over 18 years, and has been granted 12 core utility model patents. The technology iteration cycle is approximately once every six months for core product processes.

Rigorous Quality Verification System

Technology is not only reflected in design but also in the stability of mass production. All Keyulong products undergo an 8-step full inspection process, from component selection (using quality suppliers such as Rubycon/Nichicon capacitors, Infineon/ST MOSFETs) to finished product testing (ATE comprehensive testers covering voltage, current, ripple, short circuit, withstand voltage, etc.), ensuring that every shipped product achieves MTBF ≥50,000 hours, batch yield rate of 99.95%, and an annual failure rate below 0.05%.

In addition, the company's products have obtained over 100 global certifications, including CCC, CE, UL, FCC, PSE, KC, UKCA, RoHS, ERP, etc., covering more than 30 countries and regions, providing compliance assurance for customers exporting worldwide.

Continuous Innovation, Empowering Industries

Keyulong's R&D goes beyond the laboratory and deeply integrates into customer application scenarios. We provide full lifecycle technical support for customers in security, industrial, LED lighting and other industries, from selection, sampling, EMC rectification to mass production delivery. With nearly 20 years of technical accumulation, every Keyulong power adapter is a practitioner of "high-standard" stability and a meticulously polished industrial work of "pixel-level" refinement.

In the future, Keyulong Technology will continue to deepen its power technology, driving the industry toward greener, more compliant, and more customized upgrades, growing together with global partners.

Make every watt count.