Several methods to ensure the quality of LED products
Several methods to ensure the quality of LED products LED product quality is often affected by the complex and ever-changing climate environment, how to effectively detect LED products, Trampoline,Indoor Trampoline,Square Trampoline,Outdoor Trampoline Ningbo Iclean International Trading Co., Ltd , https://www.icleanaspira.com
LED high and low temperature test chamber | LED constant temperature and humidity test chamber | LED thermal shock test chamber | LED high and low temperature alternating humidity test chamber | LED UV accelerated aging test chamber | analog transport vibration table | In the LED detection equipment industry, high temperature and high pressure and impact testing:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience Thermal Shock Test Chamber Test Method:
1. Place 5 LED lamps in a room with room temperature of 60 °C;
2. Adjust the input voltage of the LED lamp to 1.1 times the maximum rated input voltage through the voltage regulator;
3. Turn on the power supply, light the lamp 24H, and observe if the lamp is damaged or the material is deformed by heat or other abnormal phenomena.
4, after the lighting test, through the relay control lighting in this environment for impact testing, the test is set to: lighting 20s, lights out 20s, cycle 100 times.
Testing requirements:
A. After the lamps and lanterns pass the test of high temperature and high pressure, abnormal phenomena such as surface stripping, discoloration, cracking and material deformation cannot occur;
B. After the luminaire has passed the impact test, no electrical abnormality such as electric leakage or lighting will occur.
Second, low-temperature low-voltage and impact test Target: LED lamps (including LED Driver finished lamps)
Reference standard: Industry experience Equipment used: Jerry JR-WD series of thermal shock test chamber (high and low temperature impact test chamber)
Test Methods:
1. Place 5 LED lamps in a -15°C environment;
2. Adjust the input voltage of the LED lamp to 0.9 times the minimum rated input voltage through the voltage regulator;
3. Turn on the power supply, light the lamp 24H, and observe if the lamp is damaged or the material is deformed by heat or other abnormal phenomena.
4, after the lighting test, through the relay control lighting in this environment for impact testing, the test is set to: lighting 20s, lights out 20s, cycle 100 times.
Testing requirements:
A. After the lamp has passed the low temperature and low pressure test, abnormal phenomena such as surface stripping, discoloration, cracking and material deformation cannot occur;
B. After the luminaire has passed the impact test, no electrical abnormality such as electric leakage or lighting will occur.
Third, normal temperature and pressure shock test:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience Test Method:
1. Place 5 LED lamps under a room temperature of 25 °C;
2. Switch on the power supply according to the rated input voltage of the LED lamp;
3, through the relay control lamps under the normal temperature and pressure for impact testing, the test is set to: lighting 30s, lights out 30s, circulation 10000 times.
Testing requirements:
A. After the lamp has passed the normal temperature and pressure impact test, no electrical abnormality such as leakage, lighting or lighting can occur.
Fourth, temperature cycle test:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience Test Method:
1. Place 5 LED lamps in a test box. The temperature of the test box can adjust the temperature change rate;
2. Switch on the power supply according to the rated input voltage of the LED lamp;
3, the test box temperature range is set to -10 °C to 50 °C, the temperature rate is greater than 1 °C / min, but less than 5 °C / min;
4. The test box is kept 0.5H at high and low temperatures and cycled 8 times.
Testing requirements:
A. After the lamps have passed the temperature cycle test, no electrical abnormalities such as leakage or lighting can occur.
Fifth, constant damp heat test:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience Test Method:
1. Place 5 LED lamps in a high-low temperature alternating damp heat test box, set the relative humidity to 95% at a temperature of 45°C;
2, according to the LED lamp rated input voltage power supply lighting 48H;
3. After the sample is taken out, dry the surface of the beads and dry it. Place it at normal atmospheric pressure and recover the temperature at room temperature for 2 hours.
Test requirements: 1, the appearance of no rust, cracks or other mechanical damage;
2, the lamp can not occur leakage, lighting is not lit and other electrical anomalies.
Sixth, vibration test:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience Test Method:
1. Pack 5 LED lamp samples and place them on the vibration test bench;
2. Set the vibration speed of the vibration tester to 300 rpm and the amplitude to 2.54 cm. Start the vibrometer.
3, the lamp according to the above method in the up and down, left and right, before and after the three directions were tested for 30 minutes.
Testing requirements:
A. After the lamp has undergone the vibration test, abnormal phenomena such as parts falling off, structural damage, lighting off, etc. cannot occur.
Seven, life test:
Target: LED lamps (finished lamps with LED Driver)
Reference Standard: Industry Experience UV Accelerated Aging Test Chamber Test Method:
1, 5 LED lamps in the room temperature 25 °C environment, according to the rated input for the initial luminous flux, power, color temperature and other parameters of the test;
2, after the initial test is completed, these samples are placed in a room temperature of 25 °C, according to the rated input voltage power supply lighting;
3. In the first three months, test the same environment and the same conditions as the initial test of these samples once every 10 days. Record the light, power and color temperature of the test and compare them with the initial parameters.
4. After the test has been conducted for three months, adjust the test interval to conduct a parameter test once a month, record the data and compare it with the initial value;
Testing requirements:
1. In the life test, when the luminous flux is attenuated for 70% of its initial luminous flux, it is the life of the sample. The average life of the LED lamp can be calculated by averaging the life of all the samples.
2. The phenomenon that the LED lamp does not light during the test is the absolute life time.
The above seven kinds of LED product detection, need to use high and low temperature test chamber | high and low temperature alternating test chamber | thermal shock test chamber (high and low temperature impact test chamber) | high and low temperature alternating humidity and humidity test chamber (temperature and humidity test chamber) | Transport vibration test bench | UV accelerated aging test box and other test equipment for testing.