Environmental Chamber | Climatic Chamber | Thermal Chamber | Salt Fog Chamber - LISUN

Introduction The rapid evolution of LED lighting technology has revolutionized the lighting industry, making LED luminaires the preferred choice for residential, commercial, and industrial applications due to their high efficiency, energy conservation, and extended lifespan. However, one persistent challenge in LED lighting is flicker, a phenomenon that significantly impacts the quality of LED luminaires and user experience. Flicker in LED lighting can lead to visual fatigue, headaches, and, in severe cases, neurological issues, making the LED flicker test a critical aspect of quality assurance. The LPCE-2 (LMS-9000) LED CCD Rapid Photometric and Electrical Comprehensive Testing System, developed by LISUN, is a state-of-the-art, high-precision testing instrument designed to address the complexities of LED flicker testing. This article provides an in-depth exploration of the technical features, testing principles, application scenarios, and broader industry impact of the LPCE-2 (LMS-900...

Introduction In the realm of analytical instrumentation, spectrophotometry stands as one of the most essential and widely used techniques for quantifying light absorption and transmission. By analyzing how a substance interacts with light at different wavelengths, spectrophotometers provide critical data across scientific research, industrial quality assurance, environmental monitoring, and medical diagnostics. Among the leading manufacturers in this field is Shanghai LISUN, a Shanghai-based company that has established itself as a trusted provider of high-precision optical measurement equipment. With over two decades of experience, Shanghai LISUN offers a diverse range of spectrophotometers designed to meet international standards while delivering outstanding performance, reliability, and user-friendliness. This article presents a comprehensive technical overview of Shanghai LISUN spectrophotometers, covering their working principles, hardware components, software capabilities, calibr...

Introduction The rapid advancement of lighting technology has underscored the critical role of efficient and reliable lighting test equipment in the illumination industry. The LPCE-2 (LMS-9000) High-Precision Spectroradiometer and Integrating Sphere Testing System, developed by LISUN, Ltd., stands out as an advanced lighting test equipment solution. This system is widely utilized for testing a variety of light sources, including LEDs, fluorescent lamps, energy-saving lamps, high-intensity discharge (HID) lamps such as high-pressure sodium and mercury lamps, and cold cathode fluorescent lamps. Its high precision, rapid testing capabilities, and multifunctionality have not only driven progress in lighting product research, development, and quality control but also exerted a profound influence on industry standards, testing efficiency, and market competitiveness. This article examines the technical characteristics, industry applications, standard compliance, market impact, and future deve...

Introduction The widespread adoption of LED lighting technology has transformed the lighting industry, establishing LED luminaires as the preferred choice for modern illumination due to their exceptional efficiency, energy savings, and extended lifespan. However, LED lumen maintenance, a critical indicator of long-term performance and reliability, remains a focal point for assessing LED quality. LED lumen maintenance refers to the ability of an LED light source to sustain its light output over extended periods, directly influencing the luminaire’s lifespan and lighting efficacy. The LPCE-2 (LMS-9000) LED CCD Rapid Photometric and Electrical Comprehensive Testing System, developed by LISUN, is a high-precision testing instrument that plays a pivotal role in LED lumen maintenance testing. This article provides an in-depth exploration of the technical features, testing principles, application scenarios, and industry impact of the LPCE-2 (LMS-9000) system in the context of LED lumen mainte...

Introduction In the contemporary world of electrical and electronic product design, IP (Ingress Protection) ratings serve as a crucial metric for assessing the capability of device enclosures against external elements such as dust and water. These standards are essential for ensuring product durability and safety across various environmental conditions. The IP rating system consists of two digits: • The first digit indicates the level of protection against solid foreign objects (ranging from 0 to 6), reflecting its ability to prevent solids like dust from entering. • The second digit represents the degree of protection against liquids (ranging from 0 to 9), indicating how well it resists water ingress. For “IPX5”, the “X” signifies that there has been no testing or requirement for dust protection, while the “5” denotes the specific water resistance level. Technical Definition of IPX5 Water Resistance Rating IPX5 specifies that the equipment can withstand “water jets from any direction ...

Introduction As LED lighting technology continues to advance rapidly, the demand for precise performance testing of lighting products has grown significantly, particularly for key metrics such as luminous flux, colorimetric parameters, and luminous efficacy. The LPCE-2 (LMS-9000) LED CCD Rapid Photometric and Electrical Comprehensive Testing System, developed by LISUN, is a state-of-the-art testing platform that integrates a high-precision spectroradiometer, an integrating sphere, and an electrical parameter meter. This system is widely used in the research, production, and quality control of LED luminaires. Central to its capabilities is the 3 meter integrating sphere, a critical component that enhances the system’s ability to perform accurate photometric measurements. This article explores in detail the technical principles, functional features, application scenarios, and industry impact of the 3 meter integrating sphere within the LPCE-2 (LMS-9000) system, emphasizing its role in ad...

Introduction In recent years, the global transition toward sustainable energy has accelerated, with electric vehicles (EVs) playing a central role in reducing carbon emissions and dependence on fossil fuels. As the core component of EVs and hybrid electric vehicles (HEVs), power lithium-ion batteries must meet increasingly stringent requirements in terms of performance, safety, and consistency. Among the various parameters used to evaluate battery quality, internal resistance stands out as one of the most critical indicators for assessing battery health status (SOH), power output capability, thermal management efficiency, and long-term reliability. To address the growing demand for high-precision, high-speed, and non-destructive testing solutions in battery manufacturing, Shanghai LISUN has developed the LS556X series of high-voltage, high-precision battery internal resistance testers, collectively known as the Shanghai LISUN Battery Tester. This innovative product line combines advanc...