By Veriquality Inspection Service Source: Veriquality Inspection Service
What is Key to perform LED light Inspection?
As Led Light, the key parameter as the following and need to measure the features and quality:
1. Power: measure the energy consumption of LED lights, unit is “watt”, e.g. The power consumption need to meet the specification.
2. Luminous Flux: measure the brightness of LED lights, unit is “Lm”, high luminous flux means good brightness.
3. Color Rendering Index: Abbr is CRI, is a quantitative measure of the ability of LED light to reveal the colors of various objects faithfully in comparison with an ideal or natural light source.
In house control conducted by the factory will be included:
1. Incoming material inspection
The inhouse QC of factory i.e. IQC inspection department for incoming goods, to conduct the inspection for critical parts, such as PCBA, power supply, frame& diffuser plate.
2. Production Control
Terminal wiring station: After each terminal wiring completed, pulling lines to ensure that the connector is fully into the hole.
PCBA cable welding station: After PCB soldering completed, each piece should be lit to test for assembly.
Frame assembly station: Between the assembly process, the inhouse QC need to check whether the framework has the phenomenon such as scratch and cracks after proceed to the next station.
Diffuser plate, light guide plate assembly station
Flipping to check the diffuser plate and LGP if have undesirable defects.
To check finished product
To conduct test according to internal QC procedure.
To check packing reliability.
What will be checked during inspection by Veriquality Inspection Service?
1.1 marking: The correct position, symbol, and size of the mandatory mark are correct, and the product should have a clear and firmly marking.
1,2 Manufacturer's name and registered trademark, rated voltage, rated power, standard frequency, product name, model specification and production date are correct.
1.2 The packaging is safe and reliable, and the product box should be accompanied by a product certificate, or bearing the manufacturer's name or registered trademark, inspection date, etc.
1.3 The shells and body’s are free of damage, scratches, spots, stains and other defects affecting the appearance; the surface is free of scratches, rust, pitting.
1.4 The parts are complete without missing, wrongly installed (such as screws) The installation without the looseness, deformation, no burrs, no flash.
1.5 No dust, oil, etc. on the surface of the reflector.
1.6 No color difference in the finished product.
2. Structure function
2.1: The product structure size meets the approval sample or design requirements. The glass for ultra-white tempered glass thickness should meet the specification.
2.2 The screw connection is firm and reliable, and the screw head is not damaged.
3. Safety & function performance test
3.1 Rub Test for Marking: After wiping with water for 15 seconds and then lightly rubbing with petrol for 15 seconds, the label should be clearly marked and the label should be fixed after it is pasted 5 times. It should not be easily peeled off or curled.
3.2 Hi-pot Test
3.3 Earth Continuity check
3.4 Polarity test
3.5 Power consumption check
3.6 Power cord strain relief test
3.7 Power on Test (aging test)
3.8 Stability Test of unit
3.9 Pull test: (collar and lamp holder) –light chain
3.10 High and low temperature working test
3.11 Fitness check for lamp and lamp holder
4 Parameter Test
4.1 Color temperature of bulb check
4.2 Luminous efficiency check for energy safe bulb
4.3 Lumens test