
Who we are
A Global Partner in Reliable Connectivity
With 20+ years of expertise, Sun Ray specializes in designing and manufacturing custom wire harnesses and power cords that meet international standards such as ISO9001 & 14001 and IATF16949. We serve automotive, e-bike, home appliance, robotics, agricultural, and medical industries, delivering safe, durable, and application-specific solutions trusted by OEMs and Tier-1 suppliers worldwide.
20+ Years of Expertise
of Defect Rate
Our Development History
Founded in 1999 with our first manufacturing facility in Taiwan, we have continuously expanded to strengthen our global presence. A factory in Dongguan, China followed in 2002, and in 2023 we launched a new facility in Bangkok, Thailand. In 2024, the Sun Ray brand was created to represent our international business and extend our reach to customers worldwide.

Why work with us
Your Partner in Reliable Connectivity
Trusted by Leading OEMs
Our products are used by Tier-1 suppliers to leading automotive brands, proving our commitment to quality and consistency.
Cross-Industry Experience
We serve a wide range of industries including automotive, industrial machinery, robotics, marine, and consumer electronics — giving us deep insight into varied application needs.
Customization
Every project is different. We offer fully customized wire harnesses, power cords, and connector solutions to fit your specific design, environment, and performance requirements.
One-Stop Service
From prototyping and sampling to mass production and packaging, we provide one-stop service to simplify your supply chain and reduce lead time.
Low-MOQ & Flexible Engineering
As a small OEM, we’re responsive, flexible, and able to adapt quickly — whether it’s adjusting production schedules, design changes, or low-MOQ custom runs.
Reliable Quality Control
Our production process includes 100% electrical testing and inspection to ensure every unit meets strict standards.
Factory Photos





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