China Inspection

CTS SERVICE LIMITED
Shenzhen WeCheck CTS Co Ltd

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Preshipment Inspection > Table Floor Fluorescent Lamp Shade Lighting Led Night Light Bulb Tube Curtain


As an third party quality inspection company, what do we check for lighting products like: Table Lamp, Foor Lamp, Fluorescent Lamp, Lamp Shade, LED Light, Night Light, Light Bulb etc.?

  • Product specs, and special requirements check
  • Measurements & sizes check
  • Aesthetic, visual defects, workmanship, surface and function check
  • On-site safety, regulation & function testing
  • Packaging, safety and drop tests
  • Quantity & assortment verifying
  • Labels, markings, logos & barcodes check

The QC inspection services are as below:


lighting quality assurance

Please find below for a an example of the inspection checkpoints for lighting products:


  • Perform a function test.-Of the on/off switch, dimmer switch, the sensor and all other functions listed on the item’s box.-S3 (20 Pcs)
  • Perform assembly test and power input test--S3 (20 Pcs)
  • Perform a life test.-Continue to run this test during the whole inspection period.-S1 (5 Pcs)
  • Perform a fatigue test for all adjustable parts. - Perform this 20 times.-S2 (8 Pcs)
  • a torque test. -Perform the torque test using 1.2Nm of torque for E14, or 2.0Nm of torque for E27. There should be no movement of the item for one minute. The torque should be applied in the correct direction to loosen locked screwes and similar connectors; normally counterclockwise. If no equipment is available, please check using the force of your hand.-S2 (8 Pcs)
  • *S*: Perform an Earth Continuity Test only for class I products-Maximum 0.5 Ohm resistance.-S3 (20 Pcs)
  • *S*: Perform a Hi-Pot test. -For Class 1: - 2*U+1000 V AC rms For Class 2: - 4*U+2000 V AC rms According to EN 60598-1:2008.Take clear pictures for following information: AC/DC socket, Requested voltage and calibration label.-S3 (20 Pcs)
  • Perform a loading test.-4 times the weight of product.-S1 (5 Pcs)
  • Perform an internal check.-Take all related pictures to show special requirements. Request at least one picture to show the whole construction of product.-S1 (5 Pcs)
  • Perform a pull test on the power cord -Use a 60 N force.-S2 (8 Pcs)
  • Perform an all-accessories check.-Check all the accessories with the item. All accessories should be included.-S3 (20 Pcs)
  • *S*: Compulsory marking check-Ensure the following markings are clearly printed on the lamp: - Mark of Origin (Manufacturer, vendor ec.) - Rated Voltage (marked V or Volts) -Rated Power (Marked W or Watts) - Rated frequency (Marked in Hz) On the lamp or packing: - Lamp Current (AC/DC) - Burning position is restricted - Not suitable for dimming sign if applicable-S3 (20 Pcs)
  • Perfom a rub test and Adhesive Test for printing: Rub test: 15 second with cloth soaked with Water and 15 second with cloth soaked with Hexane.
    Adhesive test: with 3M tape.-The priting should still be clearly readable after testing-S2 (8 Pcs)


3rd party preshipment products goods factory onsite inline final Random AQL PSI TPI FRI DUPRO third party on-site in-line pre-shipment QA QC check quality control assurance inspection services in China India Vietnam Thailand Malaysia Bangladesh Taiwan.


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