LED Tester | Christmas Light Tester - LISUN

  Photoelectric color performance detection of LED lights The main parameters of the photoelectric color performance of LED lamps include: lamp power, power factor, luminous flux, output luminous efficiency, luminous flux maintenance rate, correlated color temperature, color rendering index, chromaticity tolerance, color coordinates, and beam of reflective cup MR16 or PAR lamp. Angle, light intensity and light intensity maintenance rate.   (1) The integrating sphere system with auxiliary lamps can quickly measure all of these photoelectric color performance parameters of the LED lamp. First place the LED light in the center of the integrating sphere, and test it with the illuminated auxiliary light when the LED is not lit. The auxiliary lamp is turned off and the LED lamp under test is turned on. After the test is stabilized, the color characteristic parameter of the lamp to be tested is obtained, and the luminous flux of the LED lamp under test is automatically calculated by ...

LISUN  will visit India to attend the New Delhi Lighting Fair in October 2018 LISUN has participated in this India lighting exhibition for four years and has developed a large market in India. We will continue to participate in the New Delhi Lighting Fair in October this year. We will then inform everyone LISUN booth number and welcome to our booth! We would prepare gifts for you. This is one of the most influential exhibition for professional lighting products and technology. It involving residential lighting, commercial lighting, landscape lighting and so on. Since its launch in 2009, LED Expo was held in New Delhi and Mumbai. Both of the scale of exhibition and the number of exhibitors are increasing year by year. LED Expo Delhi enjoys high praise among the industry. LISUN have some DEMO test instruments will be sold after the exhibition. 1. Gonoiphtometer (LSG-1700B) : https://www.lisungroup.com/product-id-339.html 2. Integrating Sphere and Spectroradiometer system for LED (LPC...

This trip to India is different from the past, and this time we are going to do installation training for a first-class university in India. The University was founded in 1955. As a foremost Indian University with a vast repertoire of courses offered, an enviable list of faculty members and has come to be known for its commitment towards advanced study and research. The school purchases LSG-1700B Rotation Luminaire Goniophotometer (Big Size) and LSG-3000B Moving Detector Goniophotometer . The school only bought LSG-1700B Rotation Luminaire Goniophotometer (Big Size) before. After they received LSG-1700B goniophotometer , they think the quality of the machine is very good. So they also decided to buy Moving Detector Goniophotometer LSG-3000B for their school. The school received our engineers from Lishan very enthusiastically. Our engineers also provided the school with detailed installation and training. In addition, the school engineers also exchanged a lot of test equipment knowle...

Brief introduction of CE certificates In recent years, the CE marks are more and more widely used in the market of European economic area (Member states of the European Union and the European Free Trade association, except Switzerland). More customs of different countries set out the requirements of CE certification for imported products. Exporter will be in trouble as well as unnecessary loss if their shipping goods don't have CE certified label. So, what is the importance of CE certification? What are the forms of CE certification so far? And what are the risks of products that has not been certified by CE? 1. The importance of CE certification The CE mark on the packaging indicates that it meets the requirements of a series of European directives such as safety, sanitation, environmental protection and consumer protection. In the past, EC(European Community)countries require differently for import and sale of products. The goods which are produced according to national standards...

LED packaging principle LED package is mainly to provide a platform for LED chips, so that LED chips have better performance of light, electricity and heat. Good packaging can make LEDs have better luminous efficiency and good heat dissipation environment, and good heat dissipation environment can enhance LEDs. The service life. LED packaging technology is mainly built on five main considerations, namely optical extraction efficiency, thermal resistance, power dissipation, reliability and cost performance (Lm/$). There are many kinds of LED chip packages, and different styles of packages should be used according to the actual photoelectric characteristics. However, the common LED packages have the following five common patterns. First, the LED chip soft package, this package style is generally used in the LED display of character display, digital display, and electric display. The soft package of the LED chip is to directly bond the LED chip on the PCB printing plate, and connect the d...

This is a new company which mainly manufactures lighting fixtures. When we arrived in Russia, our engineers went to customer’s company to do installation training for this customer immediately. This customer purchased our LSG-1700B Rotation Luminaire Goniophotometer (Big Size) and LPCE-3 spectrometer integrating sphere system . Their engineers and managers also received our engineers very enthusiastically. Our engineers carefully guide them how to use the two systems. They also gave them a complete and comprehensive training. During the training, the engineers were always talking and laughing. Our engineers said this ampere training trip was very happy. At the same time, we are also very grateful for the warm reception of our customers, so that our engineers have such an unforgettable trip to Russia! Please take a look at the photos taken by customers at that time: [caption id="attachment_11040" align="alignnone" width="900"] Picture 1. Group photo of L...

 The difference between Integrating Sphere Test System and Goniophotometer 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 these two test system: 1. Integrating Sphere & Spectroradiometer Test System The Integrating Sphere Test System make measurement using integral method. Firstly, calibrated the system with a standard lighting source and then measure the sample lamp. The test result of luminous flux or color temperature is the relative value of the data of the standard lighting source. The measurement is made through the diffuse reflection spread the light into the optical fiber, and then measure it, the test time is very short, only need several seconds. In the process of diffuse emission, the light will be affected by the self-absorption performance of the lamp housing, s...