+8618917996069
English
中文简体 中文简体 русский русский Español Español Türkçe Türkçe العربية العربية en Englishpt Portuguesede Germanpl Polishko Koreanja Japaneseit Italianfr Frenchth Thaiid Indonesianhr Croatiancs Czechhi Hindi
Interpretation of the latest American Energy Star IES LM-79-19 standard
2020-01-07 463

Interpretation of the latest American Energy Star IES LM-79-19 standard

Spanish version LM-79-19 download: ANSI/IES LM-79-19 Mediciones Fotométricas y Eléctricas de Productos de Iluminación de Estado Sólido (SSL) ANSI (American National Standards Institute) and IES(Illuminating Engineering Society of North America) officially released the latest version of the IES LM-79-19 standard in May 2019, it will replace the LM-79-08 version. LISUN interpreted the new standa...

Read More
Comparative Evaluation between ANSI / IES Standards LM-79-19 and LM-79-08
2019-12-08 447

Comparative Evaluation between ANSI / IES Standards LM-79-19 and LM-79-08

Spanish version LM-79-19 download: ANSI/IES LM-79-19 Mediciones Fotométricas y Eléctricas de Productos de Iluminación de Estado Sólido (SSL) This article tries to make a comparative evaluation between ANSI/IES LM-79-19 Standard that has replaced ANSI/IES LM-79-08 that deals with the methods approved by ANSI/IES regarding performance, requirements technicians of photometric and electrical param...

Read More
The Main Differences Between Lighting test Standard CISPR 15: 2018 and 2013 Versions
2019-12-03 882

The Main Differences Between Lighting test Standard CISPR 15: 2018 and 2013 Versions

There are many customers feedback that their LED luminaires can’t pass CE Certificate EMI Radiation Test (30-300MHz) in 2019 year but it is the same one can be passed last year. Why this happen? The main reason is the new EMI test standard were updated to CISPR15:2018. The EMI Test is the most important and difficult to test for the LED luminaires. This article LISUN engineer will take us t...

Read More
The LED Driver RMS Value Measurement and Analysis
2019-06-26 908

The LED Driver RMS Value Measurement and Analysis

As we known the quality of LED lighting products depend on two points: One is LED chip(light source); Second is LED power driver. In the practice, there only have few company can provide qualified LED chip such as PHILIPS, OSRAM and CREE in the market. Generally, the LED chip have very small change to get quality problem, but we heard many news about low quality LED lighting products was found and...

Read More
How do you choose integrating sphere if you test small size but high power HID lamp?
2019-05-28 901

How do you choose integrating sphere if you test small size but high power HID lamp?

HID lamp is high intensity discharge lamp. High pressure sodium lamp, high pressure mercury lamp, xenon lamp, metal halide lamp are all belong to HID lamp. We generally use Integrating Sphere Spectroradiometer Test System to test the photometric, colorimetric and electrometric parameters. Generally we suggest the diameter size of Integrating Sphere according to the size of lamp under test. If yo...

Read More
The Methods and Principles for LED Lighting EFT Immunity Measurement
2019-05-20 741

The Methods and Principles for LED Lighting EFT Immunity Measurement

When doing IEC 61000-4-4 EFT immunity test, there are L1, L2, L3, N and PE interface. PE and earth are two different concepts. Electrical fast pulse interference is common mode, in the experimental setup figure of the standard, we can see the signal cable which is from the test generator can connect with corresponding power lines (L1, L2, L3 , N and PE) through the selectable coupling capacitor, a...

Read More
Contents and Meanings of EMC Test According to International Standards
2019-03-10 776

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 ...

Read More
How to choose LISUN products for Saudi Arabia’s latest standard SASO2902?
2019-02-26 3233

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(9000B) High Precision Spectroradiometer Integrating Sphere System. It can test EEI, Energy Efficiency Cl...

Read More
How to Disable Digital Driver Signature Enforcement for 64bit WIN 7 8 10?
2019-02-26 568

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

If the driver need be installed in 64 bit Windows System, it need have digital signature. While some driver don’t have digital signature and the PC can’t install this kinds of device. If you want to install this device in 64 bit Windows System, You need disable digital signature enforcement. Our some equipments need disable signature enforcement, such as LMS-6000, LMS-7000 and LMS-9000 series ...

Read More