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Quality Control Checklist for Random Sampling of LED Lighting Fixtures

1. Visual Inspection

  • Check for any physical defects such as scratches, dents, or deformities on the LED lighting fixtures.
  • Verify that the LED lights are properly aligned and securely attached to the fixture.
  • Ensure that the housing and components are free from any visible damage or loose parts.
  • Examine the overall appearance and finish of the fixture for consistency and quality.

2. Functionality Testing

  • Verify that the LED lights turn on and off properly.
  • Test the different lighting modes or settings, if applicable, to ensure they function as intended.
  • Check the brightness and color temperature of the LEDs to ensure they meet the specified standards.
  • Test any additional features or functionalities, such as dimming or color-changing capabilities, to ensure they work correctly.

3. Electrical Safety

  • Check for proper grounding and insulation to ensure electrical safety.
  • Verify that the power cords, plugs, and connectors are in good condition and securely attached.
  • Test for proper voltage and current ratings to ensure compliance with safety standards.
  • Inspect the power supply or driver for any signs of overheating or abnormal behavior.

4. Performance and Efficiency

  • Measure the actual lumen output of the LED lights to ensure they meet the specified values.
  • Check the color rendering index (CRI) to evaluate the accuracy of color representation.
  • Assess the efficacy and energy efficiency of the lighting fixture, comparing it to the specified requirements.
  • Test the lifespan of the LEDs by running them for an extended period to check for premature failure.

5. Environmental Factors

  • Evaluate the resistance of the fixture to environmental factors such as moisture, dust, and temperature fluctuations.
  • Perform tests for ingress protection (IP) rating compliance to determine the fixture’s resistance against water and solid particles.
  • Assess the thermal management system of the fixture to ensure it effectively dissipates heat.

6. Documentation and Labeling

  • Check that the labeling on the LED lighting fixture includes all necessary information, such as model number, wattage, voltage, and certifications.
  • Verify that the documentation accompanying the fixture includes user manuals, installation guides, and warranty information.

7. Packaging and Shipping

  • Examine the packaging for any signs of damage, ensuring it provides sufficient protection for the fixture during transit.
  • Check that the packaging includes proper labeling and handling instructions.
  • Evaluate the overall presentation and cleanliness of the packaged LED lighting fixtures.

8. Random Sampling

  • Ensure that the sampling process follows a statistically random method, such as using a random number generator or random selection from a lot.
  • Determine the appropriate sample size based on industry standards or specific requirements. Refer to SQC Online for assistance.