About us

Longjann Tech Co., Ltd. is a professional manufacturer specializing in the production of switching power supplies, power adapters and related products since 2004,

At longjann.com, we are proud to present our premium line of Gallium Nitride (GaN) chargers, engineered to meet the demands of today’s fast-paced, power-hungry world. Ranging from 30W to 200W, our chargers are designed to deliver reliable, high-speed charging for everything from smartphones to laptops and more.

Driven by a passion for innovation and efficiency, our products support the latest fast charging protocols, including Power Delivery (PD) and Quick Charge (QC), ensuring broad compatibility across devices.

What truly sets us apart is our flexibility and focus on your needs. We offer customized GaN charging solutions, tailored to meet your unique specifications—whether you’re an individual, a startup, or a large-scale distributor.

With a state-of-the-art manufacturing facility in China, we combine cutting-edge production capabilities with strict quality control, enabling us to offer top-tier products at highly competitive prices. Our blend of advanced technology, personalized service, and affordability positions us as a trusted partner in the fast-evolving world of charging solutions.

Power smarter. Charge faster.