In 2019, ANSI and IESNA jointly released the ANSI/IES LM-79-19 standard, establishing a critical benchmark for the LED solid-state lighting (SSL) industry. Over five years later, in 2025, the lighting industry is once again undergoing a major transformation with the release of the latest version of the LM-79 standard – ANSI/IES LM-79-24 – jointly issued by the American National Standa...
Electromagnetic Interference (EMI) emissions testing is a critical process in ensuring that electronic devices and systems operate within regulatory limits. This testing measures both conducted and radiated emissions that might interfere with the operation of nearby electronic devices. In this article, we will delve into the importance of EMI emissions testing, focusing on the LISUN EMI-9KB EMI Te...
Abstract Energy Dispersive X-ray Fluorescence (EDXRF) spectroscopy is a widely used non-destructive analytical technique for the detection and quantification of elements in various materials. This paper explores the application of EDXRF for gold metal testing, focusing on the LISUN EDX-2 RoHS Testing Equipment, a gold metal tester used for precise element analysis and thickness gauging. We examine...
Abstract The ASTM D5276 drop test is a widely recognized standard for evaluating the durability of packaging materials under free-fall conditions. This paper presents a comprehensive review of the LISUN DT-60KG Automatic Double-Arms Drop Test Machine, designed to meet the ASTM D5276 drop test requirements. The study outlines the machine’s specifications, testing procedures, and performance data ...
Abstract Flame retardancy testing is crucial for ensuring the safety of electrical and electronic products. The Glow Wire Test Procedure is a widely recognized method used to evaluate the fire resistance of insulating materials. This paper provides an in-depth analysis of the Glow Wire Test Procedure, with a specific focus on the LISUN ZRS-3H Glow-wire Test Apparatus. The study includes a detailed...
Abstract: The IPX4 waterproof test plays a critical role in determining the water resistance of electronic devices, electrical components, and other products used in various industries. This paper explores the IPX4 waterproof testing method using the LISUN JL-X IPX4 Waterproof Test Equipment, with a specific focus on adjustable swing angles, sample rotation, and the key features of the test chambe...
Introduction Surge immunity testing is a critical evaluation process in the development of electrical and electronic devices. It ensures the reliability and durability of devices against transient overvoltages caused by phenomena like lightning strikes or switching events. A surge testing machine, such as the LISUN SG61000-5 Surge Generator, is a specialized tool designed to simulate such conditio...
Abstract: Luminous intensity measurement plays a critical role in the performance evaluation of lighting products, and the use of a full-space distribution goniophotometer is an essential method for assessing light distribution. The LISUN LSG-6000 LM-79 Moving Detector Goniophotometer (Mirror Type C) is a leading instrument in this field, specifically designed for accurate luminous intensity meas...
Introduction The vertical flame test is an essential procedure for evaluating the flammability of materials, especially in electrical equipment and plastic parts. This test assesses the ignition characteristics, burn rate, and afterflame behavior of materials when exposed to a controlled flame source. For electrical safety, it is crucial to ensure that components used in electrical appliances, mot...
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