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Introduction of Conducted Immunity Testing

Introduction of Conducted Immunity Testing This paper is a brief introduction and description for conducted immunity testing which based on IEC 61000-4-4 fast transient burst test, IEC 61000-4-5 lightning surge test, IEC 61000-4-11 voltage cycle drop test and IEC 61000-4-12 ring wave test.   IEC 61000-4-4 establishes a common and reproducible reference for evaluating the immunity […]

LISUN Engineer do installation and training in Algeria

This customer inquiry three months ago, and visit our company about two months ago to learn about our product deeply. They are a pretty LED lighting manufacture, and we believe that there would be many orders between us in the future. After the visiting, they finally decided to purchase the devices we recommended them before: GDJS-013A […]

Five kinds of LED Efficiency

Five kinds of LED Efficiency Compare LED efficiency and life, the conception of efficiency is more complex. Firstly, there are three kinds of general efficiency, please check the Diagram 1. Luminous Efficiency(lm/W) Conversion Efficiency lamp beads Connect lamp beads to DC power source directly, the rate of lamp beads flux and consumption power Connect lamp […]

LISUN Engineer Visit Turkey to do Installation & Training

LISUN’s after-sale service is absolutely the first class! The quality of our service won’t change due to the size of the order. Such as this customer, they purchased one set of LPCE-2 Spectroradiometer & Integrating Sphere LED Test System, LISUN arranged an engineer dedicated to provide the customer installation & training to their company. Our customer […]

LISUN engineer Joye do installation and training in Korea

This time, our young engineer Joye Yang set off to do installation and training for our customer in Korea. This customer has purchased some instruments from LISUN before and they are very satisfied with our products and service. They purchased LSG-1700B Rotation Luminaire Goniophotometer (Big Size), SG61000-5 Surge Generator and EMI-9KA EMI Receiver System from us this time. Below is […]

Automotive LED Light

Automotive LED Light In China, cars are becoming more and more popular. With the development of automobile industry, automotive lights are also developing. Automobile lights have experienced Incandescent Light, Halogen Light and HID(High-Intensity Discharge) Light, to the current era of Automotive LED Light. Automotive LED Light has many advantages: Energy-saving and Environmental Protection: LED directly […]

LISUN participate in the largest Lighting Fair in Russia – Interlight Moscow

Interlight Moscow is held from November 7 to 10, 2017,  Interlight Moscow is not only the biggest show in Russia and Eastern Europe covering the whole range of products related to lighting, electrical engineering, home and building automation, but also the largest professional lighting exhibition among the Russian region and the CIS countries. LISUN got […]

Reasons of error for LED Lamp Testing

Reasons of error for LED Lamp Testing From the perspective of the LED product structure and technology development, the quality criteria of LED product mainly consider the parameters of the optical properties, electrical properties, thermal properties, radiation safety and life. LED optical properties mainly involve luminous flux, radiation flux, luminous efficiency, chromaticity coordinates, correlated color […]

Our engineer visit our old customers in Switzerland for product maintenance

LISUN engineer visited our Swiss client to do product maintenance when he do installation and training for new clients here. The customer purchased some products from LISUN before. Such as the Integrating Sphere & Spectroradiometer Test System, Goniophotometer, WT2080 LED Drive Tester, LS9956 Automatic Safety test system and so on. The customer was very surprised to our visit arrangements, […]