LED Tester | Christmas Light Tester - LISUN

Introduction In the design and manufacturing of modern electronic devices, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing are crucial to ensuring product performance and safety. The Three Loop Antenna is a specialized antenna used for EMI/EMC testing. Due to its unique design and excellent performance, it is widely used for radiation testing of various electronic devices. This paper will explore the working principle, structural characteristics, and application fields of the Three Loop Antenna, with a particular focus on analyzing the technical specifications and advantages of the LISUN VVLA-30M Three Loop Antenna. Working Principle and Structure of the Three Loop Antenna The Three Loop Antenna consists of three mutually perpendicular loop antennas, corresponding to the X, Y, and Z axes. This design allows it to receive and measure the electromagnetic field components in all directions. Each loop antenna converts the detected magnetic field variation...

Abstract The Damped Oscillatory Wave Generator is a crucial instrument for evaluating the electromagnetic compatibility (EMC) of electronic devices, particularly in assessing their immunity to damped oscillatory waves. This paper explores the testing methodologies for both fast and slow damped oscillatory waves, focusing on the LISUN DOW61000-18 Damped Oscillatory Wave Immunity Tester. We provide detailed procedures, specific test parameters, and present data tables to illustrate the testing process. 1. Introduction Electromagnetic interference (EMI) poses significant challenges to the reliability and performance of electronic equipment. The IEC 61000-4-18 standard outlines testing methods for damped oscillatory waves, which are common sources of EMI. The LISUN DOW61000-18 Damped Oscillatory Wave Immunity Tester is designed to evaluate the immunity of devices under test (DUT) to these disturbances. DOW61000 18_Damped Oscillatory Wave Immunity Tester 2. Overview of the Damped Oscillator...

Introduction In today’s industrial landscape, ensuring the resilience of electronic devices against power disturbances is paramount. These disturbances, including voltage dips and short-term interruptions, can lead to malfunctions and failures in sensitive equipment. Testing the immunity of such devices against these power anomalies is an essential part of compliance with various electromagnetic compatibility (EMC) standards. The voltage dip generator, such as the LISUN CSS61000-11 Voltage Dips and Interruptions Generator, plays a vital role in this testing process. Understanding Voltage Dips and Interruptions Voltage dips refer to short-duration reductions in the voltage supply, typically lasting from a few milliseconds to several seconds. These dips can result from various causes, including faults in the power grid, equipment startups, or electrical switching. Short-term interruptions, on the other hand, are complete losses of voltage for brief periods, which may occur due to similar...

Introduction Corrosion is a major issue affecting materials, particularly metals, across various industries. In order to understand the corrosion resistance of materials, accelerated testing methods such as the Salt Spray Test have been developed. The Salt Spray Test simulates the conditions of salt-laden environments to assess the durability and longevity of materials. The Salt Spray Chamber ASTM B117 standard has become a widely accepted method for evaluating the corrosion resistance of materials. This article delves into the details of the Salt Spray Chamber ASTM B117, its significance, the application of LISUN’s YWX/Q-010 Salt Spray Test Chamber, and provides a detailed analysis of the testing process with data examples. YWX/Q-010_Salt Spray Test Machine Understanding the Salt Spray Test (ASTM B117) The Salt Spray Test, commonly referred to as the salt fog or salt mist test, is an accelerated corrosion test used to evaluate how materials, particularly coatings, and finishes, perfor...

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Abstract As the demand for consumer electronics and household appliances increases, so does the need for stringent safety measures to ensure that the materials used in these products do not pose significant fire risks. Flammability test methods are essential for evaluating the fire resistance of materials in electronics and household appliances. This paper provides an in-depth overview of the Hot Wire Ignition (HWI) test as a key flammability test method, focusing on the LISUN RSY-LT RF Hot Wire Ignition Tester. The article explores the test principles, procedure, and the importance of this test in improving product safety. Additionally, real-world data is provided to illustrate the effectiveness of the test in assessing fire hazards in electronic and household appliance materials. 1. Introduction Flammability testing plays a crucial role in ensuring the safety of materials used in electronic products and household appliances. The ever-growing use of electrical devices in homes, office...

Abstract With the widespread use of electrical equipment, electrical safety testing has become increasingly important. This paper focuses on the LISUN LS9955 Automatic Safety Test System, specifically discussing its 5kV insulation resistance testing function. By providing a detailed introduction to the system’s testing functions, technical parameters, and application areas, this paper aims to serve as a reference for electrical safety testing. Introduction The safety performance of electrical equipment directly impacts user safety and property protection. Therefore, electrical safety testing is an indispensable part of product development and manufacturing. The LISUN LS9955 Automatic Safety Test System integrates multiple testing functions, including the 5kV insulation resistance tester, offering comprehensive testing solutions for electrical equipment’s safety performance. Overview of the LISUN LS9955 Automatic Safety Test System The LISUN LS9955 Automatic Safety Test System is a mult...

Abstract Temperature and humidity chambers play a critical role in evaluating the durability and performance of various materials and electronic components under different climatic conditions. This study explores the capabilities of the LISUN GDJS-015B Temperature Humidity Chamber | Thermal Chamber, analyzing its efficiency in simulating conditions such as heat resistance, cold endurance, dry resistance, and humidity tolerance. The study also investigates its application in multiple industries, particularly in testing CFL/LED lighting fixtures to comply with the IES LM-80-08 standard. Through comprehensive testing, we demonstrate how temperature and humidity chambers ensure product reliability and longevity. Introduction Environmental testing is essential for determining the resilience of industrial products against diverse climatic factors. A temperature and humidity chamber is a specialized testing apparatus designed to simulate extreme weather conditions, helping manufacturers asses...

In the modern world, electrical and electronic products are subjected to various mechanical impacts during their usage. These impacts, whether from accidental drops, knocks, or other forms of external force, can cause significant damage to the product, affecting its safety, functionality, and longevity. As such, ensuring that a product’s outer casing and components can withstand such impacts is critical. This article discusses the use of an Impact Testing Machine, specifically the LISUN IK01-07 Spring Impact Hammer IK Level Tester, in simulating mechanical impacts to assess the durability and strength of product enclosures. Introduction to Mechanical Impact Testing Mechanical impact testing is a standard procedure used to assess the ability of a product’s outer shell to withstand potential mechanical impacts that it may face during its normal use. The test primarily focuses on the mechanical strength of components such as enclosures, knobs, handles, switches, signal lights, lamp shades...

Introduction The RF Conducted Immunity Test System is an essential component in the field of electromagnetic compatibility (EMC) testing, specifically designed to evaluate the immunity of electrical and electronic devices against conducted electromagnetic interference (EMI) within a specific frequency range. The conducted immunity test assesses how well a device can resist the harmful effects of RF signals, which can distort its operation or cause permanent damage. In this article, we focus on the LISUN RFCI61000-6 RF Conducted Immunity Test System, a cutting-edge system developed to meet the high standards of RF immunity testing as outlined in international standards such as IEC 61000-4-6. RF Conducted Immunity Test System RFCI61000 6 Importance of RF Conducted Immunity Testing As modern electronic devices become more complex, their vulnerability to electromagnetic interference has also increased. Conducted EMI refers to the unwanted RF energy that propagates through power lines, data...

Abstract Waterproof testing is a crucial part of ensuring the durability and functionality of products exposed to water or harsh environmental conditions. A reliable waterproof testing machine, such as the LISUN JL-X IP Waterproof Test Equipment, plays a vital role in verifying the waterproof capabilities of different devices, particularly in the context of the Ingress Protection (IP) rating system. This paper provides a detailed examination of waterproof testing, the importance of Ingress Protection ratings, and how the LISUN JL-X IP Waterproof Test Equipments can be used effectively to conduct waterproof tests, ensuring that devices meet international standards. The paper also discusses the various test methods and standards associated with waterproofing, highlighting the relevance of accurate testing procedures. 1. Introduction In today’s rapidly advancing technological landscape, manufacturers face an increasing demand for devices and products that can withstand diverse environment...

Introduction In the field of environmental testing, the thermal cycle test chamber plays a crucial role in ensuring the reliability of materials, components, and products under extreme conditions. The LISUN GDJS-015B Temperature Humidity Chamber is an exemplary model designed for high and low-temperature humidity testing. It enables manufacturers and researchers to simulate a variety of environmental conditions to evaluate how products will perform in real-world scenarios, particularly when exposed to temperature and humidity fluctuations. What is a Thermal Cycle Test Chamber? A thermal cycle test chamber is an environmental testing device used to expose products to fluctuating temperature and humidity conditions. This chamber replicates thermal cycling—alternating between high and low temperatures—and humidity levels to test the durability and functionality of products like electronics, automotive components, and materials used in harsh climates. GDJS-015B Temperature Humidity Chamber...

Abstract Electrostatic discharge (ESD) is one of the most common sources of electrical interference in modern electronic devices. To ensure product reliability and compliance with industry standards, the IEC 61000-4-2 standard provides guidelines for the simulation of ESD events. This paper explores the concept of ESD and its effects, focusing on the application of the LISUN ESD61000-2 ESD Simulator Guns, which is designed to perform tests in line with the IEC 61000-4-2 standard. The paper reviews the technical specifications, test capabilities, and performance of the LISUN ESD61000-2 simulator, providing a thorough understanding of its features and advantages. A detailed analysis of the ESD simulation process and key parameters is also included to help users select the best equipment for their testing needs. Introduction Electrostatic discharge (ESD) poses significant challenges to the development and operation of electronic products. The transient voltages caused by ESD can result in...

Abstract Flammability test in textile is a crucial assessment to ensure textile products meet fire safety standards. The LISUN ZY-3 Needle Flame Test provides an effective method for evaluating textile materials’ resistance to ignition by small flames. This article discusses the significance, methodology, and results of using the LISUN ZY-3 Needle Flame Test in textile flammability testing. A comparative table of flammability performance for different textile types is also included to highlight the practical implications of this test. 1. Introduction Textile materials are widely used in everyday life, including clothing, home furnishings, and industrial applications. Ensuring their fire safety is a critical concern in textile manufacturing. The flammability test in textile helps manufacturers assess the risk of textiles catching fire and contributing to flame spread. One of the most effective and widely used tests for this purpose is the LISUN ZY-3 Needle Flame Test, which simulates th...

As a manufacturer and supplier with over 20 years of experience in high-performance industrial lighting and lighting control solutions, the company is committed to providing the most energy-efficient and effective lighting products. Their offerings include floodlights, streetlights, indoor and outdoor lighting, panel lights, and LED industrial and mining lights. With the expansion of their business, the company has been advancing technological innovation, gradually transitioning to more efficient and precise testing methods. This case study showcases how the company enhanced its testing capabilities and laboratory construction efficiency by introducing advanced optical, color, and electrical testing equipment. The client is a leading lighting equipment manufacturer dedicated to providing high-performance lighting solutions for the global market. As market demand increased and product varieties expanded, the company began facing more complex testing requirements by the end of 2023. Spec...

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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 Standards Institute (ANSI) and the Illuminating Engineering Society (IES). This updated standard provides more precise and standardized methods for testing the photometric and electrical performance of LED SSL products, and is expected to have a far-reaching impact on related industries worldwide. As a foundational standard in the SSL lighting field, the importance of the LM-79 test method cannot be overstated. Globally, it serves as a key reference for energy efficiency certification programs across numerous countries—such as Energy Star, DOE, CEC, and DLC in the United States; VEET and IPART in Australia; ORDINANC...