The full name of IEC 60068-2-1 is Environmental Testing Part 2-1: Tests-Test A: Cold. It is edited by the IEC technical committee in 2008.We will introduce the IEC 60068-2-1 Environmental Testing Part 2-1: Tests-Test A: Cold The following is the original content of IEC 60068-2-1 IEC 60068-2-1 Environmental Testing Part 2-1: Tests-Test A: Cold This part of IEC 60068 deal with cold tests applicalbe ...
The full name of EN13032-1 is Light and lighting Measurement and Presentation of photometric data of lamps and luminaires. It is edited by CEN in 2004. This standard is a guide to procedures referring where necessary to the relevant CIE, ISO and CEN publications . We will introduce the clause 6.1.1.3 Goniophotometer type 3 in this article. The following is the original content of EN 13032-1 6.1.1....
The full name of IES LM-79-08 is Electrical and Photometric Measurements of Solid-State Lighting Products. It is edited by the Illuminating Engineering Society in 2008. This approved method is a guide developed for the measurement of solid state lighting products. We will introduce the clause 9.1 Integrating Sphere with a Spectroradiometer(Sphere-spectroradiometer System) in this article. The foll...
LM-79-19 English Version Free Download: Click Here LM-79-19 Spanish Version Free Download: Click Here LM-79-19 Chinese Version Free Download: Click Here 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 ne...
LM-79-19 English Version Free Download: Click Here LM-79-19 Spanish Version Free Download: Click Here LM-79-19 Chinese Version Free Download: Click Here 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 electri...
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 to...
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...
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...
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...
中文简体
English
Русский
Español
Português
Türkçe
العربية
Deutsch
Polski
Italiano
Français
한국어
ไทย
Tiếng Việt
日本語