R&D and Quality Inspection

Our factory employs 4 R&D engineers and 10 experienced quality inspectors, ensuring every inverter, charger, and power supply passes rigorous testing before shipment. Each product undergoes electrical load testing, burn-in testing, vibration simulation, and visual inspection.

Continuous R&D investment drives product innovation and technical improvement aligned with international standards. Our Non-Performance Loss (NPL) ratio is maintained below 0.05%, a benchmark level that reflects our dedication to manufacturing precision and reliability.

Assembly and Production Lines

Our production facility features multiple automated and semi-automated assembly lines, managed by skilled technicians under standardized SOPs with traceable inspection systems. The combination of lean production methods and multi-station testing allows us to handle high-volume orders while maintaining consistent quality for global OEM and ODM clients.

Each assembly process is designed for precision and repeatability, ensuring that components—from PCB mounting to final product assembly— meet strict engineering and safety standards.

Testing and Reliability Assurance

Every inverter and power supply is tested through a complete validation process, including aging tests, power cycling, and surge protection validation. Our testing stations use multi-channel DC load analyzers and precision instruments to simulate real-world operational conditions.

These reliability procedures ensure all Drow products maintain high conversion efficiency, stable performance, and full safety compliance in industrial and commercial environments.

Warehouse and Global Logistics

Our clean and systematized warehouse follows ISO-standard management and uses an ERP-integrated inventory system to ensure accurate traceability and efficient stock rotation. Drow Enterprise manages logistics and global shipping for clients in Europe, the United States, and Asia, providing flexible lead times and custom packaging options for OEM/ODM projects.

Certified Quality and Global Standards

Our dedication to quality and transparency is supported by internationally recognized certifications, including:

• ISO 9001 – Quality Management System
• ISO 14001 – Environmental Management System
• CE, E-Mark, ETL, and RoHS – Global safety and environmental compliance

From R&D to logistics, every process is designed for precision, safety, and accountability. Drow Enterprise stands as a trusted long-term manufacturing partner for international buyers who demand uncompromising reliability in power conversion products.