Marketing Manager of Lisun Group

Satisfaction form from Customer

Mexico – Installation and training for Goniophotometer

LISUN engineer visit a famous local laboratory in Mexico this time. In the last quarter, they purchased a set of LSG-5000SCCD Moving Detector Goniospectroradiometer from our company. By comparison, our equipment is the most cost-effective among the same quality equipment. Besides, we can also provide on-site installation and training services. After the customer place the […]

3M Integrating Sphere Test Results Comparison

3M Integrating Sphere Test Results Comparison

Lisun engineers visited Barcelona recently, this visit was mainly to install the 3m Integrating Sphere Test System for the customer and provide training service. This customer compared the test results of Lisun’s 3m Integrating Sphere Test System with the test results of Holophane(HEL) and LIA Laboratories. This customer provided 4 samples to the third lab. […]

Greece – installation and training for LSG-1800B High Precision Rotation Luminaire Goniophotometer

The company that our engineers visited was founded in 2000. The company’s business scope includes the manufacture of lighting fixtures and equipment. This time, the customer purchased a LSG-1800B High Precision Rotation Luminaire Goniophotometer. The customer is satisfied after receiving our goods. But because customers have some difficulties in using equipment and installing distributed photometers, the […]

LISUN  will visit India to attend the New Delhi Lighting Fair in October 2018

LISUN has participated in this India lighting exhibition for four years and has developed a large market in India. We will continue to participate in the New Delhi Lighting Fair in October this year. We will then inform everyone LISUN booth number and welcome to our booth! We would prepare gifts for you. This is […]

Malaysia – Installation and training for dustproof and waterproof test machine and IK level tester

This customer contacted us to learn about IPXX test machine last year, they knew LISUN from their friend company. And they purchased the SC-015 Dustproof Testing Machine, JL-56 Waterproof Jet Test Device, IK07~10 IK Level Tester from LISUN recently and we have finished the installation and training for them now. The waterproof test equipment needs to design the water […]

Brazil – Installation and training for Integrating Sphere Test System and Goniophotometer

The Brazilian customer found LISUN brand and contacted us when they learned about the LED test instruments on the website. They just set up a new factory, and one of their friends has bought our equipment before. They finally purchased the CH338 Digital Torsion Meter, LPCE-2 High Precision Spectroradiometer Integrating Sphere System and LSG-1700B High Precision Rotation Luminaire Goniophotometer. […]

Indian- Installation and training for Integrating Sphere Test System

LISUN engineers often visit India to do installation and trainin. The service is recognized by the customers here. This customer is a local famous laboratory. This time they purchased 1 set LPCE-2 (LMS-9000B ) High Precision Spectroradiometer Integrating Sphere System from LISUN. Below is the picture of customer and our engineer after the installation and training: Figure […]

Columbia – Installation and training for Electrical Safety Tester

This is a large experimental institution in Colombia. They purchased ZRS-3H Glow-wire Test Apparatus, ZY-3 Needle Flame Test, TTC-1 Tracking Test Chamber, HVR-LS Horizontal Vertical Flame Tester and some other electrical safety testers from LISUN this time. They found LISUN through the website. The price of our equipment is higher than other companies’, but the materials used in our equipment are also […]

India- Maintenance for EMI Receiver System

This Indian customer purchased the EMI-9KB EMI Receiver System from LISUN last year. During the visit in India this time, our engineer went to the customer company for product maintenance. Our engineer is very popular with the customer, and our after-sales service has been highly recognized by the customer. More details for the equipment, please […]

Chile- Installation and training for waterproof test equipment

This is a well-known local testing institution. Through investigation and comparison, they finally selected LISUN. Our equipment is completely in accordance with IEC standards, and after-sales service is guaranteed. When customer place the order, our engineer designed the operation room for them. Soon after the customer received the equipment, we arrange engineer to assist in […]

Darkroom Design of goniophotometer

As the most important part of the lighting test, the main function of the goniophotometer is to measure the absolute luminous intensity. At the same time, it can measure other parameters such as lumen and illuminance. Because of the different testing principle, compared with the integrating sphere spectroradiometer system, the device is more suitable for the measurement of the […]

How to Use TM-21 to Estimate LED Luminaries Life?

LED has the features of long time. According to different power drivers and use conditions, the life of LED can be up to 50,000 hours pr more. LED will not extinguish directly like other light source but decay gradually. Therefore, luminous decay will lead to output low light after long time use, which will make products […]

How to effective to measuring LED lamp Start, Run up time and Flicker

Due to the LED solid-state lighting products have good luminous efficiency, long life and high reliability unique characteristics, so it’s became more popular by markets and customers. But at the same time, the LED solid lighting have fast response characteristics, it haven’t thermal inertia and afterglow effects, like traditional lamps, so it have big influence […]