LED Tester | Christmas Light Tester - LISUN

 The difference between Integrating Sphere Test System and Goniophotometer In optical testing, the measurement of luminous flux and color temperature are essential. There are two test equipment for the measurement: Integrating Sphere Testing System and Goniophotometer. Here we give you a brief introduction to the difference of these two test system: 1. Integrating Sphere & Spectroradiometer Test System The Integrating Sphere Test System make measurement using integral method. Firstly, calibrated the system with a standard lighting source and then measure the sample lamp. The test result of luminous flux or color temperature is the relative value of the data of the standard lighting source. The measurement is made through the diffuse reflection spread the light into the optical fiber, and then measure it, the test time is very short, only need several seconds. In the process of diffuse emission, the light will be affected by the self-absorption performance of the lamp housing, s...

This Danish customer is a testing institution. They purchased LSG-1700B Rotation Luminaire Goniophotometer (Big Size) , LPCE-2 (LMS-9000A) High Precision Spectroradiometer Integrating Sphere System , EMI-9KA EMI Receiver System , VVLA-30M Three Loop Antenna and some other equipment.   The installation and training last for 3 days. The customer is very enthusiastic and is very satisfied with our service. Here are the photos of the equipment they purchased: [caption id="attachment_10996" align="alignnone" width="900"] Figure 1: LISUN LPCE-2 (LMS-9000A) High Precision Spectroradiometer Integrating Sphere System[/caption] [caption id="attachment_10997" align="alignnone" width="900"] Figure 2: LISUN LSG-1700B Rotation Luminaire Goniophotometer (Big Size)[/caption] [caption id="attachment_10998" align="alignnone" width="900"] Figure 3: LISUN EMI-9KA EMI Receiver System[/caption] [caption id="att...

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: [caption id="attachment_10755" align="alignnone" width="2000"] Figure 1: LISUN LPCE-2 （LMS-9000B）High Precision Spectroradiometer Integrating Sphere System[/caption] Our main products are  Goniophotometer ,  Spectroradiometer ,  Integrating Sphere ,  LED Test Instruments ,  CFL Test Instruments ,  Photometer  and  Colorimeter ,  EMC & EMI Testing , Electronic Ballast Tester ,  Electrical Safety Testing ,  Environmental Test Chamber ,  Plug and Switch Testing ,  AC and DC Power Supply  and etc.

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 better. We can provide on-site installation and training services. Through investigation, they cooperate with us finally. Our equipment and services also didn’t disappoint them. The following is a group photo of the customer engineer and LISUN engineer (first from the left) after the installation training: [caption id="attachment_10714" align="alignnone" width="900"] Figure 1: Group photo in front of LISUN ZRS-3H Glow-wire Test Apparatus, ZY-3 Needle Flame Test, TTC-1 Tracking Test Chamber and HVR-LS Horizontal Vertical Flame Tester[/caption] Our main p...

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 refer to: http://www.lisungroup.com/product-id-331.html Below is a group photo of our engineer and customer company employees: [caption id="attachment_10664" align="alignnone" width="400"] Figure 1: Group photo in front of LISUN EMI-9KB EMI Receiver System[/caption] LISUN is lead in CFL & LED Test Instruments.Our main products are Goniophotometer ,   Spectroradiometer ,  Integrating Sphere ,  LED Test Instruments ,  CFL Test Instruments ,   Photometer  and  Colorimeter ,  EMC & EMI Testing , Electronic Ballast Tester ,  Electrical Safety Testing ,  Environmental Test Chamber ,  Plu...

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 the installation training. Our after-sales services is appreciated by them. Below is the satisfaction form from them:   [caption id="attachment_10643" align="alignleft" width="558"] satisfaction[/caption]                                         Finally, we share with you the group photo after the training: [caption id="attachment_10644" align="alignleft" width="900"] Figure 1: Group photo in front of LISUN IPX1~IPX8 waterproof test equipment[/caption]   Our main products are Goniophotometer, Spectr...

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 overall luminaire. Carrying the measurement with goniophotometer, the standard darkroom is needed. If the darkroom does not meet the requirements, it is likely to affect the final test results, which will lead to the deformation of distribution curve and the inaccurate results of lumen. And the final IES file will not meet the requirements, that will affect the final test results. According to the requirements of the test environment in LM-79 and CIE-70, this paper makes a brief introduction to the selection of darkroom: Temperature requirements: According to the requirements ...