Quailty Control
GreatLight Full Lifecycle Quality Management
GreatLight Implement comprehensive quality management for the entire life cycle of products, including materials, manufacturing, and after-sales service, to ensure stable and continuous product quality.


Design & Programming


Material Inspection


Production & Processing


Sales & Operations


After-sales
Quality Management Strategy
Over the years, GreatLight has received several international certifications, including ISO 9001:2015, and remains committed to enhancing customer experience and product quality in key areas:
Agility and Responsiveness
Ensure product parameters and performance meet the requirements with professional testing equipment.
High Quality andReliability
GreatLight rigorously implements quality control and assurance measures, ensuring our products and services consistently meet customer expectations.
Customer-centric Focus
By listening and exploring, we precisely deliver customer needs and expectations, integrating them into the entire value chain to create high quality.
Effective Communication
GreatLight accurately convey customer needs throughout the entire value chain to achieve better product and service quality.
Continuous Improvement
Through quality improvement plans and control tools, we continuously enhance product and service quality, improve competitiveness, and increase customer satisfaction.
Timely Professionalism
GreatLight adheres to established rules and processes, maximizes the potential of our global workforce, and strives for excellence, aiming to get things right the first time.
Our Quality Policy
We operate a system of quality management which is approved and certified to ISO 9001:2015 standards. This reflects our commitment to continuous quality improvement and customer satisfaction.
- ISO 9001:2015 certified
- ISO 13485:2016 certified
- ISO 27001:2022 certified
- IATF 16949:2016 certified
- 200,000 + quality parts produced
- Tolerances down to ±0.0004″ (0.01mm)




Scientific Management
Establish standardized and scientific management concepts; Formulate reasonable working methods and operating codes; Train excellent employees with first-class skills; Improve production efficiency.


Lean Production
Based on the expectation and values from customers, we continue to strengthen many aspects of operation and management such as production planning management, production process optimization, supply chain coordination optimization, production cost control, and staff quality. Continual improving, pursuing excellence, and continuously enhance customer satisfaction.


Quality and Efficiency
Based on the expectation and values from customers, we continue to strengthen many aspects of operation and management such as production planning management, production process optimization, supply chain coordination optimization, production cost control, and staff quality. Continual improving, pursuing excellence, and continuously enhance customer satisfaction.
Supplier Quality Management
GreatLight has established a comprehensive supplier quality management system to ensure quality control throughout the entire lifecycle of the products.


Supplier Selection
GreatLight evaluates suppliers' quality management systems, technical manufacturing capabilities, creditworthiness, etc., through inspections, qualification certifications, experimental testing, and other methods.


Contract Management
GreatLight strictly supervises and manages the specifications, quality standards, delivery deadlines, warranty periods, payment terms, and other aspects of supplier products and services.


Supplier Quality Control
GreatLight manages supplier quality by monitoring their production processes, conducting finished product inspections, and deploying quality engineers for on-site quality management.


Supplier Performance Management
GreatLight conducts comprehensive performance assessments of suppliers, evaluating their product quality, service quality, delivery rates, and after-sales rates.


Supplier Quality Audits
GreatLight regularly conducts quality audits of suppliers' design and development processes, production manufacturing processes, and product inspections.


Continuous Improvement
GreatLight shares quality management experiences and best practices with suppliers, encouraging them to improve and innovate to enhance the quality of products and services.
Let GL be the safest and most dependable choice for your next manufacturing project.








React Quickly and Effectively to Quality Issues
GL aims to deliver exceptional prototypes and parts that fulfill your specific requirements. In the event that your order fails to meet your specifications, we can process a rework or a refund. Feel free to contact our experts if you come across any quality issues within 1 month of receiving your goods. Let us know of the issue within five business days from receipt, and we’ll address them within 1 to 3 business days.
Conditions for Rework
After advising us of the concern, we review the design and samples to check for inconsistencies. We then fix the complaints and send replacements immediately.
- Unacceptable processing defects
- Fail to meet tolerance requirement
- Incorrect material / finish
Conditions for Refund
Refunds are quickly processed upon confirmation of product issues, and return is processed.
- The part is not machinable
- The customer does not agree to rework
- Other reasons

