Lisun engineer visited Brazil in May, 2016. This Brazil trip is mainly to visit our customer LABORATORIOS BRUCH LTDA . This customer is a research and development company, they are developing the lighting market in Brazil. They bought many LED Test Instruments this time, such as LSG-1700B High Precision Rotation Luminaries Goniophotometer.
After finished the Europe customer’s installation and training mission at the end of August, Lisun engineer fly to Saudi Arabia to do local customer’s training service. This Saudi Arabia customer purchased full set of LPCE-2(LMS-9000A) high precision CCD spectroradiometer & 2m integrating sphere system from us, and this customer mainly to do electrical product business, now they also to do part of LED lighting business for local market. The following is some training photos at customer side:
IES LM-79-08 Approved Method: Electrical and Photometric Measurements of Solid-State Lighting Products. IES LM-79 standard is mainly for photoelectric performance measurement. Generally it is for whole lamp. Main measurement parameters as follow: Electrical Measurement: Voltage, Current, Power and Power Factor. Colorimetric Measurement: CCT, CRI and Chromaticity Coordinates Photometric Measurement: Luminous Flux and Luminous Efficiency Integrating Sphere System can measure upper parameters, but integrating sphere system cannot measure luminous intensity distribution. Luminous intensity distribution is measured by Goniophotometer. IES LM-79 emphatically compares the total luminous [...]
In recent years, many manufacturers are planning to manufacture common global LED drive products with a wide voltage input. But since different countries have different product standards, it results in some difficulties and obstacles in the design and production. This article compares and analyzes the differences of LED driver design and test safety standards between the North American ANSI / UL 8750 standard, and European EN 61347-2-13 (to be used with EN61347-1) standard. 1. The differences in standards: 1) Products The title [...]