LONGRICH develops and manufactures travel adapters, voltage converters and power products for international B2B markets—bringing engineering, manufacturing and testing together under one system.
Our role extends beyond supplying finished products. LONGRICH supports product development from engineering evaluation through controlled manufacturing and product validation.
Product structure, electronics, prototypes and technical evaluation before mass production.
Injection molding, SMT/PCBA, assembly and production management within an integrated manufacturing system.
Electrical, charging, thermal, safety and reliability verification according to product and project requirements.
Core company metrics presented as a manufacturing snapshot.
Our product development is centered on travel power, voltage conversion and power distribution applications.
20W to 70W GaN product platforms with USB-C charging and multi-country plug configurations.
Pure sine wave step-down platforms for applications that require actual voltage conversion.
Country-specific plug solutions for US, UK, EU, AU and other international markets.
Power distribution platforms for multi-market and private-label projects.
From conventional power products to USB charging, GaN and pure sine wave voltage conversion.
The beginning of LONGRICH's power product manufacturing journey.
LONGRICH strengthened its focus on international markets and B2B customers.
Product development expanded with the evolution of USB fast-charging technology.
Development moved toward more compact and higher-power charging platforms.
LONGRICH expanded its portfolio into voltage conversion solutions.
Development of pure sine wave voltage conversion technology.
Pure sine wave voltage converter products entered the product portfolio.
Continued development across travel power, voltage conversion and customized power solutions.
Engineering capability becomes meaningful when it connects directly to controlled production and validation.
Product performance should be demonstrated through testing rather than marketing language alone.
We work around product requirements, target markets, volume planning, compliance needs and long-term manufacturing support—without exposing customer identities or confidential project information.
Tell us what you are developing, your target market, expected quantity and customization requirements.
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