Let’s take a look at LED lamp inspection standard
1.Purpose
In order to clarify the inspection specifications and requirements of CQI Inspection Company for LED desk lamp inspection standard, this product inspection requirement is specially written to standardize the company’s quality inspection service level for customers.
2.Scope of application
This inspection technical document is used to standardize the pre-shipment inspection service of LED desk lamp products.
3.Defect definition for LED desk lamp inspection standard
Serious defects (CRT): the user’s life is a major hazard or has the potential to harm and violate the relevant safety requirements of defects
Major defects (MAJ): affect the use of the product, reduce product reliability and service life or seriously affect the product image defects
Minor defects ((MIN): the product has a slight appearance defects and does not affect the product function defects
4.The level of inspection
Sampling standards: MIL-STD-105E
Acceptance level (AQL): CR=O MA=1.5 MI=4.0
5.Common appearance and functional defects for LED desk lamp inspection
Packaging
Marked with specifications, quantity, manufacturing order number and other information
Specifications, quantity and requirements do not match
Shell
No obvious color difference, pressure damage, oxidation, sand point, uneven spraying, scratches, surface
No sense scratches/pull marks and fingerprints, no sense scratches line diameter not more than 0.2, length not more than 50mn? The same visible surface can receive 2, different visible surface can receive 5, and the same visible surface can receive 5, and the scratch spacing is greater than 10cm; no obvious unevenness, uneven height; no different degrees of cracking, chipping; no breakage, batch front, the edge has a clear sense of cutting, shrinkage, top white, splash, air lines, such as note shall be defective, etc.
Mask
No obvious scratches, stains, foreign bodies, black spots, shrinkage, top white, splash, gas, etc.
The surface of the mask should be free from existing scratches, pull marks and fingerprints.
The surface should not show existing scratches, pull marks and fingerprints, and the diameter of the non-sensitive scratch line should not exceed 0.15mm, and the length should not exceed 20mn.
The visible surface can receive two, and the scratch spacing is greater than 5cm; no loose, broken, crushed, skewed, etc.
Lens
No scratches, ruptures, foreign bodies, black spots, where the area of foreign bodies and black spots shall not exceed more than 0.3mm2
Reflector
No obvious black dots, scratches, notches, batch front, color difference, etc., the area of black dots is less than
0.5mrr2; out of the existing sense of scratches / pull marks and fingerprints, no sense of scratch line
diameter not more than 0.2mm, length not more than 30mrg the same visible surface can receive 2
The scratch spacing is more than 5cm; no deformation
Screw
No slippery wire, floating height, skew, leakage, specifications do not match, rust and oxidation, etc.
Need to carry out salt spray test before.
Structure of the body
No internal glue filaments, debris, etc.; combination of gaps required less than 1mm; combination of solid, hand-breaking combined parts do not exist loose or cracked
Light body logo
The font meets the requirements, the handwriting is clear
6.Common Testing Items for LED desk lamp Inspection
Tilt test
In the most unfavorable place of the lamp body for 6. tilt test does not fall.
Clamp light clip force test
Clamp on top of smooth glass of 10mmlf in the most unfavorable situation
20N pulling force, no movement (based on safety regulations as the test)
Power cord pull test
25 times 20N pull on the power cord, the first pull on the power cord after the
Marking, subsequent testing of the power cord displacement of no more than 2mm (safety regulations as the basis for testing)
(based on the test)
The whole lamp temperature
The whole lamp temperature working state, the easy-to-reach parts of the lamp can not be overheated, not more than70 C
The whole light effect
Shaking the whole lamp, the lamp body does not produce foreign body sound.
Power wire diameter
The wire diameter of internal wiring and external wiring is in accordance with safety regulations.
Lamp body shell
Reliability test must be done for oil sprayed parts and baked parts (Hundred Gram Test)
Standard parts
Interchangeability of the parts used should be in line with the corresponding standards, the same model of lamps and lanterns, the same parts should be good interchangeability, and can be used in a variety of ways.
The same model of the luminaire, the same parts should be good interchangeability, replaceable parts should have no difficulty and do not affect the safe replacement.
Overall lighting
Effect product light-emitting surface around the phenomenon of serious light leakage, and the overall no dark areas.
Labeling
Company trademark, QCPAS 100% logo, identification product model, rated power
source voltage, power supply frequency and power supply current, line power factor, rated power
or the model number of the matching lamp.
Marking
Rub lightly with a cloth soaked in water for 15s to try to wipe off the mark, let dry, then rub lightly with a cloth soaked in gasoline for 15s.After the test, the mark should be clearly written, and the label should not fall off and not curled.
Lamp body
The height and maximum diameter of the lamp body exceed the product specification.
Performance
No dead light, dark light, light flash, color difference, light ringing, etc., when lit at rated voltage
The lamp functions work normally
Power
Light source and power supply power at rated voltage meet the requirements
Power factor
Power factor under rated voltage does not meet the requirements
Color temperature
The color temperature of the test under the rated voltage meets the requirements
Display index
The color rendering index of the test under rated voltage meets the requirements
Illuminance
The illumination of the test at rated voltage meets the requirements
EMC
Test quasi-peak, average value, the measured frequency range is (0.09MHZ-30MHZ,)
The measured data of the quasi-front and level values must be below the baseline and must not exceed
The average value of the baseline 5dB.
Harmonics
The low power factor electronic ballast less than 25W only considers the 3rd and 5th harmonics, which
In the 3rd harmonic requirements < 86, the 5th harmonic requirements < 61 greater than 25W
The electronic ballast harmonics requirements consider the 3rd, 5th, 7th, 9th, 11th-39th odd harmonics.
The 3rd harmonic requires <30 into the 5th harmonic requires <10, the 7th harmonic
Requirements <7, 9 harmonics <5, 11-39 odd harmonics <3
Durability test
1.115% of the rated voltage at room temperature for 168 hours.
2.85% of the rated voltage at room temperature for 168 hours; after the test, can work normally 15min
(This item as a confirmation test, once every six months sampling, routine inspection is not done
This test)
Protection grade
IP20
Humidity test
Humidity test is carried out in the humidity box first, the air temperature is
20-30 C, the change of temperature during the test is ≧ 1 C, humidity is
91%-95% of the test time of 48 hours, the test time is up before you can take out, and
The next step of insulation resistance test and voltage resistance test will be conducted immediately.
Intermediate test
If the lamp body lights up normally, and if it has a touch switch, check whether it is out of order. (This
item as a confirmation test, the regular test does not do this test)
Withstand voltage test
Note that the test withstand voltage to wear insulated gloves, respectively, to do two
Group test, test time 60S, leakage current 5mA
a.Desk lamp
For SELV voltage of the basic insulation 500V
* When conducting the test, the mounting surface is covered with metal foil
1.Between current-carrying parts of different polarity
2.Between current-carrying parts and mounting surfaces
3.Between current-carrying parts and metal parts of the luminaire
b.Power adapter
Double insulation or reinforced insulation | 4U+2750V
When conducting the test, the mounting surface is covered with metal foil
1.Between current-carrying parts of different polarity
2.Between current-carrying parts and mounting surface
b.Between the charged parts with different polarities through the action of the switch
No flashover phenomenon should occur during the test, and no serious defect such as leakage by breakdown should occur.
The test must be conducted without flashover and without any serious defects such as leakage.
Insulation resistance
500VDG test 60S, insulation resistance requirements.
The minimum insulation resistance between the positive and negative electrodes of the lamp, between the positive and negative electrodes and the mounting surface, and between the positive and negative electrodes and the metal parts is 1.
Minimum insulation resistance of 1MQ
The minimum insulation resistance between the positive and negative electrodes of the power adapter, between the positive and negative electrodes and the mounting surface
The minimum insulation resistance is 4MQ
Fire resistance test
The specimen (key electrical components) is burned with an open flame at a temperature of 650°C for 30S.
Any flame or burning material of the sample should be extinguished after 30S of removing the burning wire.
extinguished. Falling incendiary or molten material should not cause the sample to catch the flame on the paper laid horizontally under the sample.
The thin paper of 200mm and 5mm should catch fire. (This item is a confirmation test, sampling every six months
(This item is a confirmation test, once every six months)
Outer box
Packaging carton size, specifications, paper quality, word mark in line with the requirements of the document; packaging method without errors, omissions, mistakes.
No errors, omissions, or mistakes in packaging method
The outer box word mark is not clear, overshadowing, skewed phenomenon
No obvious color difference in the outer box (refer to the sample seal)
No crumpling, damage or moisture in the outer box, and the gap between the outer box and the seal should not be larger than 2mm
Color box
Size, paper quality meets the requirements, no errors in word mark printing, no packaging methods
No errors, omissions, mis-assembly; complete accessories (manual, installation accessories).
The color box has no obvious color difference (refer to the sample seal)
The color box is free from crumpling, moisture, damage and cracking, and the color box printing is clear and free from ghosting
7.Summary
The above is the specific content of the LED desk lampinspection standard, but with the continuous development of the product manufacturing industry and the adoption of new materials and new production processes, new types of quality problems and new product testing requirements will directly result. Therefore, it is necessary to update the LED desk lamp inspection standard irregularly.
CQI5 is committed to providing importers worldwide with product quality inspection services that far exceed those of our peers. If you are planning to import or have imported from China or Southeast Asian countries, please contact us cs’@’cqipro.com to learn more about how we can make your imports safer.
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