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LISUN engineer visit New Zealand to install & train the LSG-1800BCCD Goniospectroradiometer

LISUN engineers continue to visit countries around the world to install and train for our our customers. In this month, there is an engineer visit New Zealand, and returned yesterday. The customer purchased a LSG-1800BCCD Goniospectroradiometer and a LMS-6000 Portable CCD Spectroradiometer from LISUN. Our engineer communicate with customers through English in the whole process […]

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 and electronic equipment subjected to static electricity discharges, from operators directly, or from personnel to […]

Lisun New Product! – LED Aging Rack

Driver is the most important component of LED luminaire, its quality is directly related to the performance and quality of the luminaire. As the LED lighting manufacturers and importers’ production and procurement are in large quantities, the traditional LED driver tester has been unable to meet the demand. As per the requirement of customers, Lisun […]

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 that the integrating sphere spherical aggregates, the inner wall of integrating sphere is coated with a […]

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 IES-LM-79-08 standard’s are mentioned the types of goniophotometer, the CIE121-1996 mentioned two type goniophotometer:: one is […]


Lisun engineer visited Bulgaria in the middle of MAY, 2017. In May, our engineer was too busy because there were many customers who purchased Lisun instruments to need installing and training. We already have added two new clients in Bulgaria in MAY. So our engineer visited Bulgaria to installing and training for the two clients. […]

Type A LED tube test

With LED development, the traditional fluorescent tubes in the market are gradually being replaced by LED tubes. Currently LED tubes can be divided into three categories: Type A tube: This lamp can replace the fluorescent tube directly without modification; Type B tube: The power supply of this lamp is built-in LED tube, which can connect […]

Glow wire test

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 […]

LISUN engineer visit Peru to Install and Train the LSG-1800B Goniophotometer in May

LISUN engineer visited Peru customer in May, its really a pretty company, they bought a LSG-1800B Goniophotometer from LISUN, and we believe that we can achieve a long-term cooperation in the future. The first day our engineer arrived here, he came to the darkroom to install the equipment with the staff together. The second day, […]

Do you know IPX9K?

For IP grade test, we know the regular level IPX1~IPX8, today we will introduce the IPX9K grade test. In the Annex of standard IEC60529-2013 version, it introduces IPX9 High pressure and temperature water jet. Brief description: Protected against high pressure and temperature water jets. Definition: Water projected at high pressure and high temperature against the […]