LED Tester | Christmas Light Tester - LISUN

One more Indian customer purchased our LPCE-2 (LMS-9000B) High Precision Spectroradiometer Integrating Sphere System for laboratory testing recently. This company has been in the lighting industry for many years. They had purchased equipment from many other manufacturers before, but the after sale service was not satisfactory. They know LISUN from a friend company, their friend purchased this system from us before. After our customer received the equipment, we arrange engineer to their company to do installation and training immediately for free. The installation training lasts one and a half days. Our engineer communicate with them very smoothly use English and left a very good impression to our customer. Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate ...

Goniophotometer  is mainly used for light intensity performance measurement of luminaries and light source, which is the photometry value in different directions in space and color distribution. Goniophotometer should run in dark room, and what are the requirements for the test environment? The size requirements for dark room: for example, such as LISUN LSG-5000 LM-79 Type C Mirror Goniophotometer System . According to CIE requirement, dark room consists of 2 parts, the recommended size of the dark room for Goniometric Rotating Console is W5.0m*L5.0m*H5.9m;  the recommended size of the dark room for Photometric Light Path is W1.5m*H1.5m*L(15m – 30m). According to the requirements of CIE, the recommended distance between lamp and photo detector is 6 times than the diameter of lamp. The recommended size of operating room is no less than W3m*L3m. LISUN GROUP engineer dept will submit the Lab Design support documents according to the customer’s real lab size after the formal purc...

Our engineer Jacky Jiang visit Spain to do installation & training for clients this month. And he also visited several local potential customers during this period. This customer is a luminaires manufacturer, they are very interested in our  LED test instruments . After learning that our engineer would do installation and training nearby, they arranged engineers to learn about the led test system in our client company and discuss with our engineer deeply here. After that, they warmly invited our engineer to visit their company. Here are photos in their company: [caption id="attachment_1293" align="aligncenter" width="800"] Figure 1: Group photo of the customer and LISUN engineer Jacky (second from the right)[/caption] [caption id="attachment_1292" align="aligncenter" width="800"] Figure 2: Group photo of the customer and LISUN engineer Jacky (the right)[/caption]

Surge generator  anti-interference measurement is based on the international standard IEC 61000-4-5. 1 Test objective The entire lightning stroke in the nature (namely the indirect thunder such as the lighting stroke between the clouds, or the lighting stroke happened to the adjacent objects) can induce the surge voltage and current in outdoor aerial. Besides, huge surge voltage and current will also be induced in the supply circuit of the instant switch in the power station or switching station. The common characteristics of the two kinds of surge include high energy (compared with the energy, the static electricity is P joule level, pulse group is the millijoule level, lightning surge is hundreds of the joule level, which is one million times of the former two interfering energy), slow waveform (microsecond level, but the static electricity and pulse group are nanosecond level, even the sub nanosecond level), and low recurrence frequency. IEC 61000-4-5 is a standard that prov...

Summary: Compared with common integrating sphere , the all-new 3m  integrating sphere has many improvements. LISUN engineers add the infrared anti-pinch device, the cross laser positioning and adjustable multifunctional holder base in the integrating sphere. The world famous company Sharp Laboratories of America and some other  European companies have purchased the 3m integrating sphere. Here are some photos that show the installation, appearance and properties of the new 3m integrating sphere. The process of the sphere splicing: The painting for integrating sphere internal coating. This is the most important part and usually need about 7 days to finish all the paiting procedure. Only 3m integrating spheres need to be painted on the client side. Other spheres will be painted well before delievery. Install the motor and other accessories for automatic opening and closing the sphere: Here is the infrared anti-pinch device. It will automatically stop closing the sp...

Fair: HKTDC Hong Kong International Lighting Fair 2019 (Autumn Edition) Date: 2019/10/27-2019/10/30 City: Hong Kong Exhibition Hall: Hong Kong Convention and Exhibition Centre Organizers: Hong Kong Trade Development Council Booth of LISUN: ED-A01 Hong Kong International Lighting Fair is held by Hong Kong Trade Development Council since 1999. The large numbers of buyers and exhibitors, as well as the transaction of hitting its new peak constantly, make it the pre-eminent position in the industry of the exhibition, Hong Kong International Lighting Fair has become the largest industry exhibition in Asia, and it is ranked second in the world. During the exhibition, Lisun Electronics will bring along many important instruments for instance,  Goniophotometer ,  Integrating Sphere , EMI Receiver , Portable CCD Spectroradiometer , etc. Here are some photos from previous event for your reference: Please vist our booth ED-A01 if you need any surpport from us. Lisun Ins...

High/Low temperature & humidity test chamber is used to simulate a actual temperature and humidity environment which it may caused any influence for surrounding objects，due to electronic products widely application in various occasions, in order to design better product which meet relevant environmental standards, the temperature and humidity test has become an necessary test items, and high/low temperature and humidity test chamber widely used in many different industries such as aerospace product, electronic instrumentation, materials, electronic products and various electronic components, this environmental test chamber used to checking working performance of DUT in high temperature, low temperature or hot and humid environment. This article focuses on discussion environmental climatic chamber application on the LED lighting industry application. Lisun Electronics (Shanghai) Co., Ltd is one of best LED lighting test equipment supplier, our products involved p...

IEC 60529 IP code is a coding system to indicate the degrees of protection provided by an enclosure against access to hazardous parts, ingress of solid foreign objects, ingress of water and to give additional information in connection with such protection IP code includes 4 digits, like IP23CH. IP short for ingress protection; numeral 2 stands for first characteristics and can be instead by numerals 0 to 6 or letter X (not requires to specified), it indicates enclosure against ingress of solid foreign; Numeral 3 standards for second characteristics and can be instead by numerals 0 to 8 or letter X (not requires to specified), it indicates enclosure against ingress of water with harmful effects. Letter C is additional letter, indicates enclosures access to hazardous parts, can be instead by letters A, B, C and D, but this characteristic can be ignored; Letter H is supplementary letter, can be instead by letters H, M, S and W, but this characteristic can be ignored. In this article, we ...

Glow wire test is to test the stability of electrical and electronic products during working. And the hot wire itself is the resistance wire ring with fixed size. When doing test, the wire ring should be heated up to the specified temperature by electricity, so that the time when the top of the wire reached the sample can meet the time standard required, then observe and measure its state. The test range depends on the specific test procedures. When do the test for the determination of the burning of hot wire (GWFI) in a solid electrical insulation material or other solid materials test sample, there is a detailed requirement for the hot wire test method in standard GB/T 5169. Test results can be used for relative comparison of the performance of the above various materials, namely, the ability of the flame extinguished when remove the electricity heated hot wire; and the ability to not produce burning or glowing particles for the beneath bedding layers and packaging paper of the ...

As well as we know that for the LED luminaires lumen test, the CIE121: 1966 Clause 6.1, CIE127-2007 Clause 6.2 and IES-LM-79-08 Clause 9.0 are mentioned two luminous flux test method: the first is adoption  integrating sphere +photometer or spectrometer(recommend by CIE121: 1966 Clause 6.1.1, CIE127-2007 Clause 6.2.and IES-LM-79-08 Clause 9.0), this kind of test method is relative measurement method on lumen test; the second is photometric method which is adoption  goniophotometer , this kind of test way is absolute measuring method. If adoption integrating sphere and photometric method to test same one LED lamp, we will find luminous flux data of two test method have big difference. This article is mainly discuss luminous flux test difference at integrating sphere and goniophotometer. The principle of integrating sphere measuring total luminous flux by calibrated standard lamp. Due to there will be use a calibrated standard lamp, so there’s no need to know the integrating ...

IES LM-79-08 “Electrical and Photometric Measurement of Solid-State Lighting Products” as the exclusive international standard for measuring the total luminous flux, electrical power, luminous intensity distribution and correlated color temperature (CCT), color rendering index (CRI) and other colorimetric parameters of solid-state lighting products (SSL), it highlights the total luminous flux of SSL products should be measured with the  integrating sphere  system or  goniophotometer . So the integrating sphere, as one of the main measuring instruments of SSL products, it can reduce and eliminate the measurement error caused by the difference of light shape, divergence angle and responsivity of different positions on the detector. Its design and manufacturing process is especially important and will directly affect the accuracy of test results. Here we take a look at the current status of the production of integrating sphere technology in China market. The Status of ...