Technology News

IEC 61000-4-2 ESD Discharge Immunity Test

The International Electrotechnical Commission (IEC) has issued IEC 61000-4-2 Ed. 2.0 (2008-12) entitled “Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.” This standard relates to the immunity requirements and test methods for electrical [...]

How to choose Integrating Sphere to measuring different lamps

The Spectrometer & Integrating Sphere System or Photometer & Integrating Sphere System, there’s have two important parts: one is measuring and analysis; another is assistant part which providing testing environmental. Here we will discuss the assistant part, we knew [...]

How to choose Goniophotometer

The definition of goniophotometer is for measuring light lamps and light performance, that’s lamp light source luminosity, color values in different spatial directions distribution, and export to IES files applying on the lighting design software DiaLux. The CIE121-1996 and [...]

High/Low Temperature & Humidity Test Chamber Analysis in China Market

High/Low Temperature & Humidity Test Chamber Analysis in China Market

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 [...]

Intelligent Lighting

Intelligent Lighting is the distributed lighting control system by using internet of things technology, wired/wireless communication technology, power line carrier communication technology, and embedded computer intelligent information process and energy-saving control technology to realize the intelligent control of lighting [...]

What is TM-30?

What is TM30? IES TM-30-15 is a document approved by the Illuminating Engineering Society (IES) that describes a method for evaluating light source color rendition. The method encompasses several individual measures and graphics that complement one another and provide a [...]

How to judge the performance of the LED power driver?

LED luminaries consist of LED power driver, single LEDs and fixtures, which the LED power driver is like the heart of human, so it is the key part. Since the LED is sensitive semiconductor device and also has the [...]

LED Luminaires Basic Parameters Collection

LED manufacturers must learn some basic luminaries’ parameters such as brightness, spectrum and color temperature and so on as standard to identify pros and cons. We will introduce following LED lighting products normal parameters and tell you how to [...]

The Status of Integrating Sphere in China Market

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 [...]

Electrostatic Measurement Application in Lighting Industry

Electrostatic discharge may occur from personnel to object or object to object, and it will cause the failure of electric and electronic devices. So, the test of electrostatic discharge is widely applied in the worldwide. The ESD Simulator (ESD [...]

The Definition and Test Requirements of RF LED Lights

Definition of RF LED lights: RF LED light is emitting diode by converting the RF energy into light energy. LED lights are not always RF LED lights, for example, if the maximum working frequency of LED light is less than [...]

The main differences between the LED drive standards ANSI / UL8750 and EN61347-2-13

In recent years, many manufacturers are planning to manufacture common global LED drive products with a wide voltage input. But since different countries have different product standards, it results in some difficulties and obstacles in the design and production. [...]

How to Measure the Immunity to the Electrical Fast Transient disturbance?

EFT is short for Electrical Fast Transient, which refers that the burst has specific duration (defined as 15 ms) and specific pulse period, and the single impulse from burst has specific repetition period, voltage peak, rise time and pulse [...]

Standard LM-79 and LM-80 comparison

IES LM-79-08 Approved Method: Electrical and Photometric Measurements of Solid-State Lighting Products. IES LM-79 standard is mainly for photoelectric performance measurement. Generally it is for whole lamp. Main measurement parameters as follow: Electrical Measurement: Voltage, Current, Power and Power Factor. Colorimetric [...]

How to select standard sight source and tested samp

1. The allowable tolerance range of standard light source calibration and retest results is as follows: X, Y Chromaticity Coordinates: ±0.0008 Color Temperature: ±10K Luminous Flux: ±5‰ 2. The allowable tolerance range of contrast light source/ luminaires retest results as follows: X, Y Chromaticity [...]

What’s new: IEC 61000-4-5 Second Edition vs. Third Edition

IEC 61000-4-5 is part of the IEC 61000 series, which describes surge immunity testing caused by over-voltages from switching and lightning transients. The second edition of IEC 61000-4-5 was released in 2005 and has been in use for many [...]

AMA: LED Street Light above 3000K Bears More Health Risks

LED street lights become more and more popular in recent years, but a few days ago, the American Medical Association (AMA) just issued an official statement, warning that if the LED lights are too white and bright, it will [...]

IESNA-LM-80 for LED Lumen Maintenance Test

IESNA-LM-80 (Measuring Lumen Maintenance of LED Light sources) is an approved method by Lighting Engineering Association of North America (IESNA) for the third generation SSL products; it mentioned the measurement standard and method. The main purpose is that measure [...]

IEC60598 General Requirements and Tests

With the fast development of electrical industry in China, manufacturing enterprises scale grows constantly, international electric safety standards apply more and more widely. Lighting industry standards are also widely used. International standard IEC60598 general requirements and test cover classification of [...]

India LED Lighting Market in 2016

India lighting market develops rapidly, research reports point that LED lighting market scale will reach 1.14 billion dollars, growth 47.1%. India government intends to make India to be the lighting products export hub for East Asia and Gulf States, [...]

According to IESNA-LM-79, How to Choose the Integrating Sphere and Goniophotometer

IESNA-LM-79 (Electrical and Photometric Measurements of Solid-State Lighting Products) is a standard made by Illuminating Engineering Society of North America; this standard put forward the measurement standard and method, which clarify the test parameters, testing equipments, measurement rules and [...]

How to Choose the Right LED Lighting with Appropriate Color Temperature?

Different color temperature will give us a different feeling. In a different environment with the same brightness, the object’s color we can see will be a great difference. It is not difficult for us to find that there are [...]

Surge Immunity Test Combination Wave Generator

Combination wave generator is a high reliability analog lightning surge generator designed for lightning production enterprises. It is suitable for Electromagnetic compatibility (EMC) – Surge immunity test. It can test impact current absorption capacity and impact current anti-jamming capability [...]

LED Lighting development in future

LED is short for light emitting diode. It is one kind of semiconductor diodes, which can convert electrical energy into energy. With the technology development, LED lighting applications are more and more. How is the development trend in future? [...]

The development, application and test standards of LED street lights in the Southeast Asian market

Nowadays, with the development of LED industry, its technology continues to be mature and has widely applied at home and abroad. Comparing to mature markets in Europe and America, LED lighting industry also has been very popular in Southeast [...]

IEC62262 for LED Luminaries IK Protection level Test

IEC62262(How to install the EUT when doing the IK degree protection test, ventilation requirements, quantity of hammer, distribution of the hammer and hammer each level corresponding), the IEC62262, IEC60598 (GB7000) and IEC60068-2-75 (GB2423.55) standards applications IK degree test with [...]

Brief Induction of Electrostatic Discharge Simulator

It is quite important for factories and users to prevent equipment from electrostatic discharge. With the wide application of microelectronic components, to improve the reliability of products and systems, we urgently need to identify various factors of problems to find [...]

Characteristics and Applications of Different Type Goniophotometer

According to IESNA-LM-79 standard, Goniophotometer is used for light intensity distribution and flux test. Accordingly, Lisun Group introduced several different types Goniophotometer, the following introduces its characteristics and application. Lisun LSG-2000 LM-79 Goniophotometer with Rotating Mirror is an automatic light [...]

Testing requirements and advantages of LED lights applied in the automotive market

LED automotive light adopts LED (light emitting diode) as a light source. Since the LED possesses advantages of high brightness, variety of colors, low power consumption and long life, and it has enhanced that daytime running lights must be [...]

How to understand the intensity distribution curve?

Definition: Means luminaries or light sources emit light intensity distribution in space. It can record the luminous flux of luminaries, light quantity, power, power factor, the size of the luminaries, luminaries efficiency including manufacturer of luminaries, type and other [...]

Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment

Standards GB17743-2007 / CISPR 15:2005 <Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment> instead of the standards GB 17743-1999 and GB 15734-1995. The limits for the 2m loop diameter apply to equipment not [...]

Standard operating procedures of Spectroradiometer & Integrating Sphere System

Spectroradiometer & Integrating Sphere System as main test device to measuring LED lamps, it’s as a most important device to judge the quality of lighting products. How to operating these device and make it have better work condition became [...]

The evaluation and measurement standards of LED blue light hazard

LED blue light hazard is to evaluate the photochemical damage of the blue radiation to the retina. In practice, we may observe the light source or luminaire emitting surface in different regions from different angles. Therefore, in order to [...]

The Relationship between LED Heat Dissipation and Junction Temperature

LED heat dissipation has become more and more attention by people, this because its Lumen decay or its life is directly related to its junction temperature, bad heat dissipation, junction temperature is high, life is short, according to the [...]