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Lighting Inspection: Types of Tests and Global Standards

TESTCOO/April 15, 2025
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Lighting plays a crucial role in our daily lives, from homes and offices to streets, vehicles and industrial spaces. As energy efficiency, safety and performance become increasingly important, lighting inspection has emerged as a critical step in the production and quality assurance process. This blog explores what lighting inspection involves, the types of tests conducted and the global standards applicable to different markets.


What Is Lighting Inspection?

Lighting inspection refers to the process of evaluating lighting products, such as LED bulbs, fluorescent lamps, luminaires and lighting fixtures, for their quality, safety, energy efficiency and compliance with relevant international or local standards. These inspections are typically carried out during different stages of the manufacturing process (pre-production, during production and pre-shipment) and also in laboratories for certification purposes.

The objective of lighting inspection is to ensure that the product:

  • Works as intended
  • Meets energy efficiency targets
  • Is safe for use
  • Complies with relevant regulations
  • Will satisfy customer expectations


Why Is Lighting Inspection Important?

  1. Safety Compliance: Poorly manufactured lighting products can be a fire hazard or cause electric shock.
  2. Energy Efficiency: Lighting contributes significantly to energy use in homes and commercial buildings. Efficient lighting reduces utility bills and carbon footprints.
  3. Market Access: Products that fail to meet international standards may be barred from entering certain countries or regions.
  4. Customer Satisfaction: Substandard lighting can lead to complaints, returns and damage to brand reputation.


Types of Lighting Products That Undergo Inspection

  • LED bulbs and tubes
  • Compact Fluorescent Lamps (CFLs)
  • Incandescent bulbs
  • Halogen lamps
  • Luminaires (including ceiling lights, downlights, panel lights, etc.)
  • Outdoor and street lighting
  • Automotive lighting
  • Industrial lighting (e.g., high bay lights, floodlights)

Read more about Amazon Electronics Requirements for Sellers for Lighting Products


Types of Tests Performed During Lighting Inspection

Lighting inspections typically involve a combination of visual, mechanical, electrical, photometric and environmental testing. Below are some of the most common types of tests:

1. Visual Inspection

A basic but important part of lighting inspection that includes:

  • Checking for defects in the housing, lens or heat sink
  • Inspecting finishing quality (painting, polishing, sealing)
  • Verifying labeling, logos and barcodes
  • Confirming model numbers and rating labels

2. Functionality Test

  • Verifies whether the light turns on and off correctly
  • Ensures all features (e.g., dimming, color temperature adjustment) function properly
  • Checks for flickering or buzzing sounds

3. Electrical Safety Test

These tests are vital to ensure user safety and include:

  • Hi-pot test (Dielectric strength test): Measures insulation between live parts and accessible surfaces.
  • Earth continuity test: Ensures proper grounding in metal-bodied products.
  • Leakage current test: Verifies that electrical leakage is within safe limits.
  • Power consumption test: Measures wattage to confirm energy use aligns with product claims.

4. Photometric Test

  • Luminous flux: Measures total light output in lumens.
  • Luminous efficacy: Evaluates how efficiently the light source converts electricity into light.
  • Color Rendering Index (CRI): Assesses how accurately colors appear under the light.
  • Correlated Color Temperature (CCT): Determines if the light has a warm (e.g., 2700K) or cool (e.g., 6500K) hue.
  • Beam angle: Important for task or directional lighting applications.

5. Thermal Test

  • Temperature rise test: Ensures that the lighting fixture does not exceed safe temperature limits during use.
  • Thermal management: Evaluates heat dissipation capabilities, especially critical for LEDs.

6. Mechanical Test

  • Drop test: Assesses durability during transportation.
  • Vibration test: Especially important for automotive or outdoor lighting.
  • Torque test: Checks the strength and reliability of screw fittings.

7. Ingress Protection (IP) Test

  • Evaluates the product’s resistance to dust and water.
  • IP ratings like IP65, IP67 are especially important for outdoor lighting.

8. EMC/EMI Test (Electromagnetic Compatibility/Interference)

  • Ensures the lighting product does not interfere with or is not affected by other electronic devices.
  • Required by most markets for compliance.

9. Endurance and Lifespan Testing

  • Simulates long-term use to verify manufacturer claims.
  • Typically involves operating the product for thousands of hours.

10. Material & Component Verification

  • Confirms the use of certified or approved components (e.g., drivers, LEDs, cables).
  • Ensures flame-retardant and RoHS-compliant materials are used.

Read more about the Solar Light Inspection Service


Global Lighting Standards and Regulations

Different markets have their own set of lighting standards and regulatory requirements. Here’s a summary of key standards across major regions:

1. United States

2. European Union

  • CE Marking: Mandatory for most electrical goods.
  • EN/IEC 60598: Safety standard for luminaires.
  • ErP Directive: Energy-related Products Directive requires efficiency labeling.
  • RoHS Directive: Restriction of hazardous substances in electrical equipment.
  • REACH: Addresses chemical safety.

3. China

4. Japan

5. Australia/New Zealand

6. Middle East

7. India


Challenges in Lighting Inspection

1. Constantly Evolving Standards

Regulatory changes require continuous updates in testing protocols and compliance strategies.

2. Variety in Product Types

From streetlights to smart lighting systems, inspection methods need to adapt to product complexity.

3. Global Supply Chains

Products are often designed in one country, manufactured in another and sold globally, each with different requirements.

4. Cost vs. Quality Balance

Brands are under pressure to reduce costs, which can affect material choices and quality assurance.

The Role of Third-Party Inspection Companies

Engaging a professional third-party inspection company helps mitigate the risks associated with substandard lighting products. Services offered include:

  • Initial-production checks (IPC) - An Initial Production Check (IPC) is performed at the stage of about 10%-30% products finished for quality control inspection. It is the first step in ensuring the quality of your product will be consistent throughout production
  • During production inspections (DUPRO) - During Production Check (DUPRO) is an essential preventative measure taken in the early stages of production, which can mitigate costly mistakes in the long run by highlighting any problems before too many defective items are produced and avoid affecting the shipping schedule
  • Final Random inspections (FRI) - Final Random inspections (FRI) inspections act as a final check to evaluate product quality, packaging, product labeling and carton markings and ensure that items are correctly packed and fit for their intended use. The FRI takes place at 100% production completed with a minimum of 80% of goods packed and seated in shipping cartons for verification of your purchase specifications
  • Factory audits and supplier verification - A factory audit is the assessment for production capability and performance of a factory against proven quality principles. Every production site needs reliable manufacturing and quality control systems to ensure customers are satisfied with their products
  • Lab testing and certification - Lab testing is the scientific evaluation of a product to verify safety, performance and compliance with standards. Certification is the official confirmation by a third party that a product meets regulatory or industry requirements.

These services ensure that lighting products meet customer requirements and comply with relevant international standards before they are shipped.


FAQs

Q1. What’s the difference between LM-79 and LM-80?

A: LM-79 measures LED performance (light output, efficacy, etc.) under specific conditions. LM-80 measures lumen maintenance over time (i.e., how long the LED retains its brightness).

Q2. Can a product be certified for multiple countries at once?

A: Some certifications (like CB Scheme) help in obtaining multiple national certifications, but usually, individual approvals are needed for different markets.

Q3. How long does a lighting inspection take?

A: A pre-shipment inspection for a typical lighting order takes 1–2 days, while laboratory tests may take 1–4 weeks depending on the tests required.


Testcoo can help you with Third Party Lighting Inspections

Lighting inspection is an essential quality control measure in today’s competitive and highly regulated market. Whether you're a lighting manufacturer, retailer, importer or brand owner, understanding the inspection process and applicable global standards is crucial for product success. Integrate a robust lighting inspection process by partnering with Testcoo. We help companies keeping their customers safe. If you’re in the lighting business and need support with quality inspections, compliance or lab testing, contact us to can simplify your journey and help you shine in your market.


Get a quotation for lighting inspection
ABOUT TESTCOO
TESTCOO is a leading third-party quality control inspection company headquartered in China and we are accredited by ISO9001, CNAS, AQSIQ, and IS0 27001. We provide product inspection, factory audit, testing, and certification in every sector around the world. With 500 full-time qualified inspectors and auditors, TESTCOO performs over 100,000 inspections annually and is trusted by more than 5000 global retailers, brands, and suppliers worldwide.
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