QUALITY CONTROL

Zero Compromise.
Every Unit. Every Time.

At ONELIGHTS, quality is not an afterthought -- it is engineered into every stage of production. Our multi-layer inspection system, in-house laboratory, and ISO-certified processes ensure each product performs to specification before it reaches your hands.

100%
Final Inspection
1hr+
Aging & Water Test
11
Test Equipment Types
2
ISO Certifications

CERTIFIED STANDARDS

Internationally Recognized Quality Frameworks

ISO 9001
Quality Management
TS16949
Automotive QMS
E-mark
European
DOT
US Standard
SAE
Automotive
CISPR Cl.5
EMC Class
QC PROCESS

End-to-End Quality Control Process

From incoming materials to final shipment, every stage is controlled under ISO 9001 and TS16949 frameworks to ensure consistent, reliable output.

1

Incoming Material Inspection

All raw materials and components are inspected before entering production to verify specifications and quality standards.

2

In-Process Inspection

Quality checks at each production stage to catch defects early, reduce waste, and maintain process consistency.

3

Final Inspection

100% of finished products undergo automated water immersion and aging tests for a minimum of 1 hour before packaging.

4

Laboratory Testing

Comprehensive performance testing covering optical, electrical, environmental, and mechanical parameters in our in-house lab.

5

Pre-Shipment Inspection

Random sampling inspection per ISO 9001 and TS16949 requirements before every shipment to verify consistent quality.

All processes strictly follow ISO 9001 quality management system and TS16949 automotive quality standards
FINAL INSPECTION

100% Tested
Before Packaging

Unlike many manufacturers who rely on sampling, every single ONELIGHTS product is individually tested before it leaves our production floor. No exceptions.

Automated Water Immersion Testing 100%

Every unit is submerged under automated water immersion testing conditions for a minimum of 1 hour to validate IP-rated waterproof sealing integrity.

Automated Aging Testing 1hr+ per unit

Products run under continuous operation for at least 1 hour to detect any early-life failures and verify thermal stability and electrical performance.

Visual & Functional Inspection

Trained inspectors verify appearance, wiring, connector integrity, optical output, and labeling conformity on each unit.

Pre-Shipment Random Sampling ISO 9001

A random sampling inspection per ISO 9001 and TS16949 standards is conducted before every shipment as a final quality gate.

100%
Units Individually Inspected

No unit leaves the production floor without passing both water immersion and aging tests.

1hr+
Minimum Testing Duration per Unit

Continuous water immersion and aging testing for at least 1 hour validates durability under real-world conditions.

ISO FRAMEWORK
ISO 9001 + TS16949 Certified

Our quality management system is formally certified to both ISO 9001 general quality standards and TS16949 automotive-specific requirements, ensuring traceable, auditable processes.

PERFORMANCE TESTING

Comprehensive Testing Coverage

We test for every performance parameter that matters in the field -- ensuring our products withstand real-world operating conditions across global markets.

Waterproof Performance

IP67/IP68/IP69K rated testing validates complete protection against dust ingress and water immersion under pressure.

IP67 IP68 IPX9K

EMC / Anti-Interference

Conducted and radiated emissions testing per CISPR Class 5 standards to ensure electromagnetic compatibility in vehicle environments.

CISPR Cl.5 R10

UV Resistance

Accelerated UV exposure testing evaluates long-term color stability, lens clarity, and housing material degradation under sunlight.

Accelerated UV Color Stability

Vibration Resistance

Multi-axis vibration testing simulates off-road and heavy-equipment operating conditions to validate structural integrity and connector reliability.

Multi-Axis SAE J395

Optical Performance

Goniophotometer and integrating sphere measurements verify real lumen output, beam pattern, color temperature, and luminous intensity distribution.

Real Lumens Beam Pattern CCT

Salt Spray & Corrosion

Accelerated salt spray testing validates housing corrosion resistance, coating durability, and connector performance in marine and coastal environments.

500hr+ ISO 9227
IN-HOUSE LABORATORY

11 Categories of
Professional Testing Equipment

Our dedicated in-house laboratory is equipped with professional-grade instruments that cover every critical performance dimension -- from electromagnetic compatibility to optical characterization and environmental stress testing.

ONELIGHTS in-house testing laboratory
Professional Grade Lab
Floor 1, ONELIGHTS Facility -- Wenzhou, China
11
Equipment Types
6
Test Categories
10k
Facility Size
EMC Laboratory
Electromagnetic compatibility -- conducted & radiated emissions
Goniophotometer
Light distribution testing -- beam pattern & intensity mapping
IPX9K Water Spray Testing
High-pressure, high-temperature water jet resistance validation
Thermal Shock Chamber
Rapid temperature cycling to test thermal stress resilience
Vibration Testing Equipment
Simulates off-road & heavy-machinery operational vibration profiles
Integrating Sphere
Total luminous flux measurement for real lumen output verification
UV Testing Equipment
Accelerated UV weathering for material and coating durability
Salt Spray Testing Equipment
Corrosion resistance validation for housings, hardware & coatings
High-Altitude & Low-Pressure Testing
Simulates altitude conditions for global market compliance
Drop Testing Equipment
Impact resistance and mechanical robustness under drop shock
IP5-6 Dust & Water Resistance Testing
Validates protection rating against dust ingress and water jets
GET IN TOUCH

Quality You Can Verify.
Partner You Can Trust.

Request product samples, test reports, or a factory audit. Our team is ready to provide full documentation and technical support for your sourcing decisions.

ISO 9001 Certified
100% Final Inspection
13+ Years Experience
E-mark / DOT / SAE