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How to detect lighting product quality reliability?

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When consumers buy to LED lighting products, need to check reliability of the product when in use, which need to be tested. Success of this testing technology, a decisive effect on the quality of products, to implement the product design and the production process from start to finish.

When a lighting products are designed, and how long is the life of it? How can poor conditions (such as high temperature, low temperature and vibration) run safe? Manufacturers have to pass through the experiment do have answers. Then, using written instructions, warning the user precautions to prevent damage due to improper operation. Here brief introduction of reliability test methods and projects.

Lighting product reliability test items include: a high-temperature test b: high temperature high pressure impact test c: test d: high impact at low temperature starting test e: f vibration test: test g: ageing test h: small test I: pilot. Following these projects use. (With rated voltage 220V, for example), part of the equipment required to self.

A: high temperature test.
Main test equipment: thermostats, thermometers, voltage regulator, voltage meter and clock.
Test item: high temperature low voltage start, high temperature operation.
Quantity: 10 PCs.
Test method: put stay measuring lamps put into thermostat box, connection circuit, put regulator of output voltage adjustable to 180V (regulator only to stay measuring lamps power), open thermostat box power, put temperature set in 60 ℃, stay box within of temperature rose to 60 ℃ Shi open lamps of power, observation lamps whether normal work, then put regulator rose to 250V, let its work 24 hours, observation experiment results. If any lamps damaged thermal deformation anomaly when the experiment failed.

B: high temperature high pressure impact test.
Main test equipment: thermostats, thermometers, voltage regulator, voltage meter and clock.
Main test: high-temperature start-up performance and reliability
Quantity: 10 PCs.
Testing method: connect trial. In high temperature conditions, voltage up to 250V voltage regulator, the switch three times, intervals of not less than 8 seconds (interval is 8 seconds to lamps and discharge all the capacitors in, reducing mutual interference), in the process, lamps should not be damaged, otherwise will be deemed ineligible.

C: tests at low temperature.
Main test devices: cryogenic tanks, thermometers, voltage regulator, voltage meter and clock.
Main test: low temperature and low pressure start.
Quantity: 10 PCs.
Test method: put stay measuring lamps put into low temperature box, connection circuit, put regulator of output voltage adjustable to 180V (regulator only to stay measuring lamps power), open low temperature box power, put temperature set in-15 ℃, stay box within of temperature fell to-15 ℃ Shi again keep 2 hours, let lamps full cooling Hou, open lamps of power, observation experiment results. If lamps damaged, unable to start, such as an exception when the experiment failed. (Constant temperature and humidity Chamber BE-TH Bell brand products)

D: high impact at low temperature starting test.
Main test devices: cryogenic tanks, thermometers, voltage regulator, voltage meter and clock.
Main test: reliability of low temperature and high pressure shock
Quantity: 10 PCs.
Testing method: connect trial. In low temperature conditions, voltage up to 250V voltage regulator, the switch three times, intervals of not less than 8 seconds (interval is 8 seconds to lamps and discharge all the capacitors in, reducing mutual interference), in the process, lamps should not be damaged, otherwise will be deemed ineligible.

E: vibration test.
Main test equipment: rig 1
Quantity: 10 packages.
Test method: the wrapped sample, on vibration test table, adjustable test frequency 0. 5-5 Hz, for 1 minute, the amplitude is 1. 5 cm, top and bottom, left and right, front and rear respectively on the three test for 30 minutes, and then remove the sample tests, there should be no damage to the phenomenon, otherwise will be deemed ineligible. (Electromagnetic vibration BF-LD and analog transport vibration BF-SV products)

F: life tests.
Test device: power supply
Main test: normal working life
Quantity: 10 PCs.
Test method 1: rated voltage 220V lamps turned on, getting it to work, note the starting time, each lamp is damaged, note the time of termination, when all the lamps damaged, find the lamp average working hours, the useful life of the product.
Method 2: according to the actual lighting products, accelerated aging methods (such as high temperature, high pressure and frequent switching, etc) according to manufacture special aging equipment.

G: aging tests.
New products prior to their commissioning must be respectively in quantity by small batch trial production and trial phases, through these tests can identify non-design issues such as raw material and process problems. Here is the specific test methods.
Main test equipment: ageing, voltage regulator, voltage meter.
Test item: volume production of raw materials.
Number of tests: test 500, try in 2000.
Test method, first turn the voltage up to 250V, turn off the power, then put his product on aging equipment, switch three times and intervals for more than 8 seconds, and then power off, then transferred to voltage 170V power observations finally turn the voltage up to 250V, aging after 2 hours, switch 3 times every 8 seconds, end of the age. If a problem is found during above tests are not qualifying products, in need of repair.

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