Do you know all these basic tests of industrial lighting fixtures?

In recent years, the pace of LED replacement of traditional light sources has become more and more obvious, especially in the field of industrial lighting, LED industrial lamps are more and more widely used, and a large number of LED industrial lighting lamps are of uneven quality. It is also difficult to distinguish the product.

"When the tide recedes, you will know who is swimming naked." "Poor quality" lamps gradually leak out of "underpants" after experiencing the tide of "high heat introduction", and the lighting time gradually becomes longer, and the luminous efficiency and quality are no longer good. In the past, the light was different, and the quality was better or worse.

The luminous efficiency and life of LED lamps are closely related to the working temperature of the LED chip. The quality of the whole lamp is also affected by factors such as the LED chip, radiator, and power supply. However, the stability and reliability of the lamp in the actual application process can be judged to determine whether the lamp is stable or not. It doesn't seem easy to get good or bad performance.

Quality Management

Since 2008, SEVA has been deeply engaged in the field of industrial lighting for 13 years. Our customers involve many industries and large enterprises. We understand the strict quality requirement of outdoor and harsh environment electronics and test all products via the most rigorous quality system. In our daily business work and bidding, we often involve product testing and set up a professional LED lighting testing laboratory. Today, let us introduce to you the test method of industrial LED lamps and lanterns, which provides a valuable reference for industrial lighting users.

Our experimental center was established in 2012, invested by Shenzhen SEVA Lighting Co., Ltd. and affiliated to Shenzhen SEVA Lighting Co., Ltd. Huizhou Branch. According to CNAS-CL01 "Testing and Calibration Laboratory Capability Accreditation Guidelines"; the area of the experimental center reaches 1000m2, equipped with integrating sphere test system, distributed photometer test system, EMC test system, product life test system, IP protection level test System, high and low temperature test box, electrical parameter tester, temperature inspection instrument, salt spray tester, lightning surge tester, drop tester and other equipment;

we have obtained the certificate of China National Accreditation Service for Conformity Assessment(CNAS). And we are the cooperative testing lab of TÜV SÜD Certification and Testing (China) Co., Ltd.

LED lamp performance

Test : LED product reliability test

Purpose of the test: To evaluate the usage, life performance, endurance and electrical characteristics of LED lighting products under various environmental conditions.

Environmental and Climate Reliability── • Temperature Cycling Test • Thermal Shock Test • Temperature and Humidity Cycling Test • Dry Heat/Cold Resistance Test • Humidity Load Test • Salt Spray Test • Industrial Test • Temperature Cycling Ignition Test • Temperature & Humidity Combined Vibration Testing • High Temperature Water Vapor Pressure Testing • Environmental Stress Screening Testing • Highly Accelerated Life Testing • Low Air Pressure Testing • Optical Quality Assessment

Mechanical Reliability ── • Visual Inspection • Drop Test • Ball Pressure Test • Bump Test • Vibration/Sinusoidal Vibration/Random Vibration Test • Mechanical Shock Test

Electrical Operation Reliability── • High temperature forward bias test • High temperature/low temperature operating life test • High temperature and high humidity bias test • High temperature and high humidity reverse bias test • High temperature and high humidity operating life test • Electrical test before and after stress • Uninterruptible power test for electrostatic discharge characteristics

There are nine test laboratories in SEVA's experimental center, with more than 100 sets of advanced test equipment, which are tested according to relevant national or industry-standard methods, such as: GB and other standards. It can also be tested according to IEC, ATEX, UL, and other test standards as needed.

LED lamp performance

Test 1: Optical performance test

Common detection contents: luminous intensity detection, luminous flux and luminous efficacy detection, spectral characteristics detection (LED spectral characteristics detection includes spectral power distribution, color coordinates, color temperature, color rendering index, etc.) light intensity distribution test, etc.

SEVA Optical Lab 1：

1)Test items

It is mainly responsible for the luminosity and chroma parameters of the light source and the average

chroma parameters of indoor and outdoor lighting lamps. And the stroboscopic parameter measurement of lamps and light sources; Small size and high precision measurement of components.

2)Main equipment and uses

1. High precision and fast spectral radiometer test system, used for the measurement of luminosity and

chroma parameters of light source products; Measurement of average chroma parameters of indoor and outdoor lighting.

2. Light source stroboscope is used to measure the reference frequency, flicker percentage (PF), flicker

index (FI) and modulation depth (MD) of lamps and light sources.

3. The secondary image instrument is used for small size and high precision measurement of lamps, control devices, light sources and other parts: measuring the center of the circle (arc) on the object, radius, line width, Angle, distance and intersection; It has the function of program editing. The system includes image processing functions, such as removing the rough edges and finding the center line. In addition, it also has statistical analysis, automatic focus, automatic detection and other functions.

SEVA Optical Lab 2：

1)Test items

Mainly responsible for indoor and outdoor lighting lamps, light source products, distribution luminosity,

illumination, brightness detection.

2)Main equipment and uses

1.Distributed photometer test system, used for the detection of electrical parameters, illumination, light

intensity distribution, lamp efficiency, luminous flux and other parameters of lamps.

2.Handheld illuminometer is used to detect the surface illumination of lamps and light sources in different scenes.

3.Hand-held luminance meter is used to detect the surface brightness of lamps and light sources in different scenes.

LED lamp performance

Test 2: Light decay test

For the durability and stability of the lamps, it is also necessary to carry out a light decay test, and use the darkroom to obtain the data before and after the aging of the lamps. Generally, 7 days, 1 month, 3 months, half a year and other different times will be selected to measure.

SEVA Long term aging lab：

Mainly responsible for lighting electrical products, long-term

lighting aging detection of luminous flux, lighting test.

Main equipment and uses

1. Aging frame, used for long-term aging of lighting electrical

products;

2. Precise frequency conversion power supply, used to adjust

the aging voltage of lighting electrical products

LED lamp performance

Test 3: Environmental test

For example, the thermal shock test is to test the adaptability of the rapid changes in the ambient temperature of the lamps, especially many high-power lamps are installed outdoors, facing a more complex application environment, there may be many situations.

SEVA Environmental lab

Mainly responsible for the wet test, low temperature and low

pressure start test, high temperature and low-pressure impact

test, high temperature and low-temperature cycle test, constant

humidity and heat test, etc.

Main equipment and uses

1. Programmable constant temperature and humidity test box,

used for moisture test of various lighting electrical products.

2. High and low-temperature test box, used for high and low-

temperature test of various lighting electrical products.

3. High-temperature test box, used for high-temperature test of

various lighting electrical products.

Salt spray resistance test

Lamps installed outdoors, especially in coastal areas, where the installation environment is in a salt spray environment, can be tested for salt spray (usually tested in a salt spray environment for 24 hours to check for cracks), it is required to be tested in a salt spray environment. intact.

LED lamp performance

Test 4: Dustproof and waterproof detection

Generally, outdoor lamps and lanterns require a protection level of IP65 or higher, and the test is carried out according to the standard of IP65 level. The sample lamps need to be free of dust and water. Part of the installation needs to be soaked in water, and there are also IP67-68, which can be soaked in water.

SEVA IP waterproof lab

Main equipment and uses

1. Water dripping test device, which is used for water proofing

performance detection of lighting electrical products;

2. Splash and rain test device, used for testing waterproof water

spraying and strong water spraying performance of lighting

electrical products;

3. Water-tight test device, which is used to detect the water-proof

and water-proof performance of lighting electrical products;

5. Static water pressure tester for explosion-proof lamp housing

explosion-proof detection.

LED lamp performance

Test 5: Mechanical properties test

For example, vibration testing. Lamp vibration detection, taking the CB standard as an example, the vibration test time is 30 minutes, 2.3G, after the vibration test, the lamps have no parts falling off, structural damage, and poor lighting, and the sample lamps must be in good condition.

For example, switch test, in order to ensure the reliability of lamps, it is also necessary to do the cyclic switch test of lamps. Taking CB as an example, it is tested 70,000 times with 5 seconds on and 5 seconds off.

SEVA Mechanical properties lab

)Main equipment and uses

1.Needle flame tester and searing wire tester are used for the safety detection of anti-combustion and anti-ignition of components made of insulating materials used in lighting electrical products.

2.Wind shield, used for durability and thermal test of lighting electrical products.

3.Sand and dust test box, which is used for testing the dust proof and tightness of lighting electrical products.

4.Ball drop test, used for reliability impact test of lamp housing.5. Automobile simulated transportation vibration table, used for illumination electrical appliances finished products simulated transportation vibration test.

5.Automobile simulated transportation vibration table, used for illumination electrical appliancesfinished products simulated transportation vibration test.

6.The packaging fall-test machine is used for the fall-reliability test of lighting electrical appliances.

7.Bending and bending test machine for wire and its connecting parts.

8.Bedroom plug and pull force tester, used for various connector plug and pull tests for lighting electrical products.

9.Key life test machine, used for switch key life test of lighting electrical products.

10.Drum drop tester, used for free drop test of lighting electrical products.

11.Standard test means that the test equipment used for the protective inspection of enclosure against human and equipment shall be tested.

12.Torque wrench, used for testing the torque value of fastening bolts and nuts, tightening or loosening.

13.Tension tester for testing tensile or compressive tensile forces of material components.

14.Impact hammer is used to test the ability of lighting electrical products and enclosure of accessories to withstand mechanical impact.

15.Ball pressure test device is used for heat resistance test of electrical enclosure and external parts made of insulating materials

LED lamp performance

Test 6: EMC test

For example, surge test. Surge protection is the "first line of defense" for LED lamps to respond to grid load and lightning strike induction. Various surges may cause damage to LEDs, so it is very important to choose a power supply. If necessary, it can also be added to the lamp. Lightning arrester, multi-layer protection.

SEVA EMC laboratory

1)Test items

It is mainly responsible for the detection of lighting electrical products, such as disturbance

voltage, electromagnetic radiation, electrostatic discharge, electrostatic discharge, electric fast transient impulse group anti-disturbance test, surge (impact) anti-disturbance test, voltage sag, short interruption and anti-disturbance test of voltage change.

2)Main equipment and uses

1. EMI tester, used for the detection of disturbance voltage and electromagnetic radiation of lighting electrical products;

2. Lightning surge generator for the detection of lightning surge voltage of lighting electrical products;

3. Electrostatic discharge generator for the detection of electrostatic discharge in lighting electrical appliances;

4. Surge, group pulse, and voltage drop comprehensive tester, which is used for wave surge (impact)

anti-disturbance test of lighting electrical appliances, electrical fast transient impulse group anti-disturbance test, voltage sag, short interruption, and voltage change anti-disturbance test

LED lamp performance

Test 7: SEVA Electrical performance test

LED is a unipolar PN junction diode composed of semiconductor inorganic materials, and the relationship between its voltage and current is called volt-ampere characteristics. The electrical characteristic parameters of the LED include forward current, forward voltage, reverse current and reverse voltage. The LED must be driven by a suitable current and voltage to work normally (as shown in Figure 1). Through the test of the electrical characteristics of the LED, the maximum allowable forward voltage, forward current, reverse voltage and current of the LED can be obtained, and the best working electric power of the LED can also be determined.

The electrical characteristics of LEDs are generally tested with a voltage and current meter under the corresponding constant current and constant voltage source.

SEVA Electrical performance lab

1)Test items

It is mainly responsible for the electrical performance, harmonic current, ripple current, grounding resistance, insulation resistance, electrical strength, contact current, lamp head torque and other parameters testing of lighting electrical appliances. Electrical performance parameters, charge-discharge test, etc. Battery performance, charge-discharge testing and other technical parameters..

2) Main equipment and uses

1. LED drive power supply performance tester, used for lighting electrical performance parameters, harmonic detection.

2. Oscilloscope, ripple current and voltage, etc.

3. Battery comprehensive tester for battery capacity, internal resistance, overcharge and over-discharge.

4. Linear high-precision ac stabilized voltage power supply meets the requirements of safety regulation and performance test of lighting electrical products.5. Precision dc power supply to meet the requirements of testing dc power supply for lighting electrical products.

6. Digital power meter is used for testing voltage, current, power and power factor of lighting electrical appliances.

7. Low resistance tester used for microresistance testing of lighting electrical products.

8. Electronic load tester for simulating electronic load test of lighting electrical products.

9. Intelligent digital lamp head torque tester, used for lamp head torque test of lighting electrical appliances.

10. Ac voltage-resistant insulation tester for electrical strength and insulation resistance testing of lighting appliances.

11. SPC ground resistance measuring instrument used for testing ground resistance of lighting electrical products.

12. Contact current meter, used for measuring the contact current and leakage current of lighting electrical appliances.

If you are looking for more information about Industrial lighting LEDs, please contact SEVA Lighting. We can help！

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