Lisun engineer visit at Saudi Arabia on the September
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, […]
How to select standard sight source and tested samp
1. The allowable tolerance range of standard light source calibration and retest results is as follows: X, Y Chromaticity Coordinates: ±0.0008 Color Temperature: ±10K Luminous Flux: ±5‰ 2. The allowable tolerance range of contrast light source/ luminaires retest results as follows: X, Y Chromaticity Coordinates: ±0.0050 High Color Temperature: ±150K Low Color Temperature: ±100K Luminous […]
Low Voltage Directive (LVD) Overview
LVD’s goal is to ensure the safety usage of low-voltage equipment. Its range of application is on electrical products with voltage at 50V to 1000V AC and 75V to 1500V DC, including all the safety rules of this equipment, and protection against hazards caused by mechanical. The design and construction of the apparatus shall ensure […]
What’s new: IEC 61000-4-5 Second Edition vs. Third Edition
IEC 61000-4-5 is part of the IEC 61000 series, which describes surge immunity testing caused by over-voltages from switching and lightning transients. The second edition of IEC 61000-4-5 was released in 2005 and has been in use for many years. The third edition was released as an EN standard in 2014. The general philosophy of the third […]
Lisun engineer visit in Thailand on the August
After finished Europe install and training mission at beginning of August, Lisun engineer fly to Thailand directly to do install and training service for local customers. After long time discussion, the Thailand customer purchased LPCE-3 spectroradiometer & integrating sphere system, LSG-1800B high precision rotation luminaires goniophotometer and WT2080+LSP-500VAR+M9812 complete LED driver test system from Lisun […]
