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Contents and Meanings of EMC Test According to International Standards
10 Mar, 2019 4874 Author: root

Contents and Meanings of EMC Test According to International Standards

Electromagnetic Compatibility EMC refers to the ability of a device or system to function properly in its electromagnetic environment and does not constitute an electromagnetic disturbance to anything in the environment. Sensor electromagnetic compatibility refers to the adaptability of the sensor in the electromagnetic environment, maintaining its inherent performance and the ability to perform ...

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How to choose LISUN products for Saudi Arabia’s latest standard SASO2902?
26 Feb, 2019 7318 Author: root

How to choose LISUN products for Saudi Arabia’s latest standard SASO2902?

Recently Saudi Arabia released new LED standard SASO 2902 for energy efficiency, functionality and labeling requirements for Lighting products. We have got the SASO 2902 in 2017 which is draft and already produce some instruments for some of the Saudi Lab. Such as below products: 1. LPCE-2(9000) High Precision Spectroradiometer Integrating Sphere System. It can test EEI, Energy Efficiency Clas...

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How to Disable Digital Driver Signature Enforcement for 64bit WIN 7 8 10?
26 Feb, 2019 10154 Author: root

How to Disable Digital Driver Signature Enforcement for 64bit WIN 7 8 10?

If you need to disable the 64bit digital signature enforcement of the computer, follow the steps: For Win 7 system There are two ways and you can use any of them. Restart the computer and press “F8” at the beginning. Then you can enter “Advanced boot options”. Move the cursor to “Disable Driver Signature Enforcement” and press “Enter”.     F...

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The differences of the test result between LISUN WT2080 LED power driver tester and multimeter when testing LED power driver
18 Jan, 2019 3209 Author: root

The differences of the test result between LISUN WT2080 LED power driver tester and multimeter when testing LED power driver

Some customers suspect the accuracy of the WT2080 because there is some differences of the test result between LISUN WT2080 LED Power Driver Tester and multimeter when testing LED power driver. In fact, the test results are different because the test principle is different: the WT2080 test result is the real effective value (RMS), the multimeter test result is the average value. LISUN WT2080 is ac...

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Why should you choose a constant current power supply for the LED driver?
06 Jan, 2019 3668 Author: root

Why should you choose a constant current power supply for the LED driver?

The LED is a light-emitting diode, and its characteristic curve is basically the same as that of a normal diode. When the applied voltage reaches the diode conduction voltage, the slight change of the applied voltage can cause a great change in the diode current. The constant current is used to ensure that the current in the LED is constant. No matter how the voltage changes, the current flowing...

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Characteristics of LISUN GDJS series High and Low Temperature Humidity Chamber
05 Jan, 2019 3367 Author: root

Characteristics of LISUN GDJS series High and Low Temperature Humidity Chamber

LISUN GDJS seriesHigh and Low Constant temperature and humidity chamber  is according to IEC60068-2-1 (GB/T2423.1) and IEC60068-2-2 (GB/T2423.2). It is used to test the CFL/LED which meets IES LM-80-08, electricity products, electronic components, material and so on. There is some other manufacturers in China also produce High and Low Temperature Humidity Chamber, and LISUN VS espec temperature ...

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The Status of Waterproof Test Equipment in China Market
26 Dec, 2018 4344 Author: root

The Status of Waterproof Test Equipment in China Market

Waterproof  testing grade reflects the ability of moisture-proof of products. Especially for outdoor activities, it is unavoidable to be in the harsh environment of high humidity. The sealing and water-proof ability of the instrument is very important to ensure the safe of operation and life of the instrument.     At present, there are many manufacturers producing waterproofing test equipment ...

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The difference between integrating sphere test system and goniophotometer system
26 Nov, 2018 3342 Author: root

The difference between integrating sphere test system and goniophotometer system

In optical testing, the measurement of luminous flux and color temperature are essential. There are two test equipment for the measurement: Integrating Sphere Testing System and Goniophotometer. Here we give you a brief introduction to the difference of goniophotometer vs integrating sphere: 1. Integrating Sphere & Spectroradiometer Test System The Integrating Sphere Test System make me...

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How to measure electric, photometric and colorimetric parameters for LED lamps and lanterns?
26 Nov, 2018 3437 Author: root

How to measure electric, photometric and colorimetric parameters for LED lamps and lanterns?

The main parameters of LED lamps and lanterns include: A: Electric parameters: voltage, current, lamp power, power factor, harmonic, etc B: Colorimetric parameters: correlated color temperature, color rendering index, chromaticity tolerance, color coordinates, SDCM, etc C: Photometric parameters: luminous flux, output luminous efficiency, beam angle, UGR table, intensity distribution, candela tab...

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