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Seven test LED methods
- Oct 03, 2018 -

Seven test LED methods


1, LED high temperature and high pressure and its impact test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1. Place 5 LED lamps in a room with a room temperature of 60 ° C;


2. Adjust the input voltage of the LED lamp to 1.1 times the maximum rated input voltage through a voltage regulator;


3, turn on the power, light 24H, and observe whether the lamp is damaged, the material is deformed by heat and other abnormal phenomena;


4. After the lighting test, the impact test is carried out in this environment through the relay control lamp. The test setting is: lighting for 20s, extinguishing for 20s, and cycling for 100 times.


Testing requirements:


A. After the high temperature and high pressure test, the lamp can not be exposed, such as paint stripping, discoloration, cracking and material deformation.


B. After the impact test, the lamp cannot be electrically anomalous such as electric leakage or lighting.


2, LED low temperature and low pressure and its impact test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1, the 5 LED lamps are placed in a -15 ° C environment;


2. Adjust the input voltage of the LED lamp to 0.9 times the minimum rated input voltage through a voltage regulator;


3, turn on the power, light 24H, and observe whether the lamp is damaged, the material is deformed by heat and other abnormal phenomena;


4. After the lighting test, the impact test is carried out in this environment through the relay control lamp. The test setting is: lighting for 20s, extinguishing for 20s, and cycling for 100 times.


Testing requirements:


A. After the low temperature and low pressure test, the lamp can not be exposed to paint, discoloration, cracking, material deformation and other abnormal phenomena;


B. After the impact test, the lamp cannot be electrically anomalous such as electric leakage or lighting.


3, normal temperature and pressure shock test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1, the 5 LED lamps are placed in a room temperature of 25 ° C;


2. Turn on the power supply according to the rated input voltage of the LED lamp;


3, through the relay control lamps under normal temperature and pressure test, the test settings are: lighting 30s, lights out 30s, cycle 10,000 times.


Testing requirements:


A. After the normal temperature and normal pressure impact test, the lamp can not cause electrical anomalies such as electric leakage and lighting.


4, temperature cycle test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1, the 5 LED lamps are placed in a test box, the temperature of the test box can adjust the temperature change rate;


2. Turn on the power supply according to the rated input voltage of the LED lamp;


3, the temperature range of the test box is set from -10 ° C to 50 ° C, the temperature shift rate: greater than 1 ° C / min, but less than 5 ° C / min;


4. The test box is kept at 0.5H for high temperature and low temperature, and is circulated 8 times.


Testing requirements:


A. After the temperature cycle test, the lamp can not be leaked, the lighting is not bright, and other electrical anomalies.


Elephant.


5, LED constant damp heat test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test method: 1, the 5 LED lamps are placed in a constant temperature and humidity chamber, the constant temperature and humidity chamber is set to a relative humidity of 95%, the temperature is 45 ° C;


2, according to the rated input voltage of the LED lamp, the power supply is turned on 48H;


3. After removing the sample, dry the surface water bead and check it after returning to normal atmospheric pressure and normal temperature for 2H.


Test requirements: 1, the appearance is free from rust, cracks or other mechanical damage;


2, the lamp can not be electrically anomalous such as leakage, lighting, etc.


6, vibration test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1. Pack 5 LED lamp samples and place them on the vibration test bench;


2, the vibration tester vibration speed is set to 300 rev / min, the amplitude is set to 2.54 cm, start the vibrometer;


3. Test the luminaire for 30 minutes in the up, down, left and right, and front and back directions according to the above method.


Testing requirements:


A. After the vibration test, the luminaire cannot be abnormally caused by parts falling off, structural damage, and no lighting.


7, LED life test:


Target: LED lamps (finished lamps with LED Driver)


Reference standard: industry experience


Test Methods:


1, the 5 LED lamps in the environment at room temperature 25 ° C, according to the rated input for initial optical, power, color temperature and other parameters tested;


2. After the initial test is completed, place the samples in a room temperature of 25 ° C, and turn on the power according to the rated input voltage;


3, in the first three months, every 10 days, these samples were tested in the same environment and the same conditions as the initial test, and the tested light, power, color temperature, etc. were recorded and compared with the initial parameters;


4. After the test is carried out for three months, adjust the test interval to perform a parametric 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 by 70% of its initial luminous flux, the life of the sample is calculated, and the average life of the LED lamp is obtained by calculating the average value of the life of all the samples;


2, the LED sample does not light up during the test, it is its absolute life time.


First, the product characteristics: 1, fast drying, cross-linking speed, low temperature cross-linking, can be 100 ° C to 150 ° C × 20 points, that is, fully cured; 2, salt water and salt spray effect is good; 3, for various metals Good adhesion; 4, high hardness, high gloss, high fullness; 5, excellent resistance to various solvents and nitric acid. Second, the product introduction: thermosetting acrylic resin AH-215A is based on AH205 to improve fullness and salt spray resistance and nitrate resistance

High-grade products developed by acid, the product can be cross-linked at low temperature, has excellent fullness, good adhesion, excellent resistance to nitric acid and salt spray, and is very suitable for electroplating of nickel plating, galvanizing, copper plating, etc. made from metal. Third, product specifications:


Appearance clear liquid


Active ingredient 60±2


Viscosity (Gardner Holdt, 25°C) Z2-Z5


Acid price 55~75


OH% (theoretical value) 2.6


Chromatic number <1


Note: (1) Spray viscosity: coated - 4 cups 15";


(2) Thinner XYL/BCS/MIBK/DAA/PMA=50/20/15/5/10;


(3) Baking temperature: 105 ° C × 30 minutes;


(4) HADP101A is a good functional resin that can increase salt spray and solvent resistance.