Professional lighting evaluation requires correct measurement of luminous distribution and beam shape, light intensity distribution, uniformity and directional output. In current illumination systems, total lumens are no longer a significant consideration and rather accurate angular distribution of light is used to establish compliance, visual comfort, energy efficiency and harmonious beam in prac...
In November 2025, a severe fire in Tai Po, Hong Kong, filled people’s hearts with profound sorrow. Amid the roaring flames, textiles inside the building, such as curtains, carpets and decorative fabrics, burned rapidly. The toxic smoke released and the fast-spreading blaze not only narrowed the escape routes but also posed immense challenges to the rescue operations. This tragedy serves as a...
The high rate of development of solid-state lighting has generated the demand of precise and dependable luminous flux measurements. To develop energy-saving LED systems, the optical output, color stability, heating impacts and reality lumen depreciation have to be evaluated accurately. The most common method of this measure is one found on an integrating sphere which is an optical enclosure that i...
Abstract Accurately assessing the quality of electronic capacitors is fundamental to ensuring the reliability and performance of electronic devices. This article systematically details the critical parameters, technical principles, and methodologies involved in how to measure capacitance and, by extension, overall capacitor quality. It provides an in-depth introduction to the series of capacitor m...
The ingress protection testing has been significantly changed in the past 10 years with the push of industries among outdoor-rated electronics, sealed industrial controls, marine-rated automation, and battery-powered equipment. The IPX5 level is one of the commonest waterproof levels that are very practical in real-life applications in consumer electronics, lighting, outdoor power equipment, wall-...
Abstract With the rapid development of new-energy technologies, the battery—being the core component of energy storage—has attracted increasing attention for its performance verification techniques. Among them, the Battery Tester serves as the key instrument for battery inspection and plays an irreplaceable role in quality control, maintenance and R&D. Taking the LISUN LS5562 Battery Teste...
Environmental testing is essential in engineering industries including the automotive, defence, electronics manufacturing, industrial equipment and medical equipment and aerospace industries as it assures durability and safety. In this assessment, a thermal chamber assumes one of the key roles since the level of reliability in operations often varies radically when the products are subjected to va...
One of the most common tools of immunity testing is an ESD generator, which is necessary to test the achievable robustness of electronic products related to electrostatic discharge. Although engineers are usually preoccupied with accuracy of the waveforms, compliance and test procedures, safety and appropriate procedure remain vital issues. ESD generators produce very high-voltage bursts of many t...
The proper use of EMI receiver in advanced laboratories and compliance facilities is important to obtain accurate electromagnetic measurements. Electronic systems are becoming densely connected, high-speed and compact systems, hence increasing the complexity of the undesirable interference. The EMC testing engineers have to depend on precision devices, uniform procedures, and punitive best practic...
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