How to test LED lamps in high and low temperature test chamber

LED, a new concept of solid-state light source, has become one of the most promising high-tech technologies in the world in recent years due to its comparable energy-saving, environmental protection, long life, and controllable elementary technical advantages. At the end of the day, the transformation of semiconductor lighting technology is changing the history of traditional lighting for hundreds of years. With the application of LED technology in the field of lighting, LED products have set off a green storm of energy saving and environmental protection in the world, and are known as "green lighting" products in the industry. Today, with higher and higher energy consumption, some people predict: "In the next 10 years, LED products will become the only products to replace traditional lighting fixtures such as high-pressure sodium lamps, incandescent lamps, fluorescent lamps."

Linpin Instruments has been happy from time to time to carry out research and development and consumption of construction conditions in the light of the sky, in line with the market to open the trend, Linpin Instruments especially for the LED optoelectronic industry to develop innovation and manufacture suitable constant temperature and humidity, up and down temperature execution box Since the hot and cold attack on the execution box products, since the constant temperature and humidity execution boxes and other products have been put on the market, they have been deeply respected by the trust of the majority of users. For direct sales and consultation on the construction of constant temperature and humidity execution boxes, please directly join: Lin Bin Instrument is happy in the research and development of the execution box construction. Here is a brief introduction about the reliability test of LED products.

1. Arrange the led lamps under a -15 ℃ condition;

Test method: After the lighting test, the relay control lamp will stop the attack test under this condition;

The test settings are: turn on the lamp for 20s, turn off the lamp for 20s, and cycle 100 times;

For things: LED lamps (waste lamps with leddriver) test request.

2. The test box is deadlocked at low level and high temperature for 0.5h, and the cycle is repeated 8 times;

Test request: refer to the specifications: industry experience, turn on the power, light the lamp for 24h, and check whether the lamp is damaged, the data is deformed by heat, etc .;

For things: led lamps (waste lamps with leddriver), the temperature innovation range of the test box is set from -10 ℃ to 50 ℃, and the temperature change rate is: greater than 1 ℃ / min, but less than 5 ℃ / min.

3. Pack and arrange the samples of led lamps on the vibration test bench;

After the high temperature and high pressure test of the lamp, it is not a very serious phenomenon that the surface of the fire will be stripped, discolored, cracked, and the data is deformed;

For things: led lamps (waste lamps containing leddriver) led lamps test methods,

Low temperature and high pressure and its attack test: for things: led lamps (including waste lamps and lanterns with leddriver) test request: reference specification: industry experience.

4. Turn on the power, turn on the lights for 24 hours, and check whether the lamps and lanterns are damaged or the data are deformed by heat; refer to the specifications: industry experience

For things: led lamps (waste lamps with leddriver),

After removing the sample, wipe the surface water drops, put it under normal atmospheric pressure and normal temperature to recover for 2h, then stop the search;

After the low temperature and high pressure test of the lamp, it is not a very serious phenomenon that the surface of the fire will be stripped, discolored, cracked, and the data is deformed;

After the lighting test, the relay control lamp stopped the attack test under this condition. The test settings were: lighting for 20s, extinguishing for 20s, and 100 cycles. Test method: After the cyclic temperature test of the lamps and lanterns, the electrical phenomena such as fire, leakage, and lighting are not successful.

5. Turn on the power according to the rated output voltage of the led lamps;

Reference specification: industry experience

Turn on the power for 48h according to the rated output voltage of the led lamps;

6. Constant dry-cooling test: After the lighting test has been attacked from beginning to end, there is no electrical phenomenon such as fire, electric leakage, and lighting failure.

Test method: turn on the power according to the rated output voltage of the led lamp; the start and end relays control the lamp to stop the attack test at normal temperature and pressure,

The test settings are: 30s on, 30s off, and 10,000 cycles.

After the test of the lamps and lanterns has been attacked from beginning to end, there is no such thing as a fire and electricity leakage, and the lighting is not bright.

7. The voltage regulator adjusts the output voltage of the led luminaire to 1.1 times the maximum rated output voltage; the luminaire is tested according to the above methods on the three trends of up, down, respect, and front and back for 30 minutes.

Arrange the led lamps in a condition where the room temperature is 25 ℃;

Temperature cycle test: the voltage regulator adjusts the output voltage of the led lamps to 0.9 times the minimum rated output voltage;

8. Arrange the led lamps in a constant temperature and humidity box, the constant temperature and humidity box is set to 95% absolute humidity, the temperature is 45 ℃;

Test method: reference specification: industry experience

After the test of the lamp at normal temperature and pressure at the beginning and end, it is impossible to cause electrical leakage, fire, leakage, and other electrical phenomena.

9. Normal temperature and pressure attack test: place the led lamps in a room with a room temperature of 60 ℃;

Set the vibration speed of the vibration tester to 300 rpm and the amplitude to 2.54 cm, and start the vibration meter;

Test method: high temperature and high pressure and its attack test: arrange the LED lamps in a test box, the temperature of the test box can adjust the temperature innovation speed; for things: led lamps (including waste lamps with leddriver)

Vibration test of led lamps: Test request: Test method: After the vibration test of the lamps and lanterns, the failure of the burning parts, the destruction of the structure, and the non-lighting of the lights are very common phenomena.

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