LED Tester | Christmas Light Tester - LISUN

Abstract Glow wire flammability testing is a critical evaluation method for assessing the fire safety of polymeric materials used in lighting devices, electronic products, and household appliances. This study aims to systematically investigate the glow wire flammability performance of common engineering plastics, focusing on ignition temperature (GWIT), flammability index (GWFI), and combustion behavior. The experiments were conducted using the LISUN ZRS-3H Glow-wire Test Apparatus, which complies with international standards including IEC 60695-2-10 and UL 746A. Three representative materials—glass fiber-reinforced polycarbonate (PC-GF30), polybutylene terephthalate (PBT-GF30), and polyethylene terephthalate (PET-GF30)—were tested under controlled conditions. Results indicate that PC-GF30 exhibits the highest GWIT (825°C) and GWFI (900°C), followed by PBT-GF30 (GWIT: 725°C; GWFI: 800°C) and PET-GF30 (GWIT: 675°C; GWFI: 750°C). The LISUN ZRS-3H apparatus demonstrated high precision in ...

Abstract Fire and flammability testing plays a critical role in ensuring the safety of electrical equipment and combustible materials, as small flames resulting from internal faults can trigger catastrophic fire hazards. The LISUN ZY-3 Needle Flame Test Apparatus is a specialized instrument designed to simulate such fault-induced small flames and evaluate ignition risks. This paper elaborates on the design principles, technical specifications, testing procedures, and application scenarios of the LISUN ZY-3, with a focus on its compliance with international standards. By analyzing its structural components and performance parameters, the paper demonstrates its significance in fire and flammability testing for lighting equipment, low-voltage electrical appliances, insulation materials, and other products. Practical test cases and data are presented to verify its reliability and accuracy, providing a reference for researchers and industry practitioners in material safety evaluation. 1. In...

https://www.lisungroup.com/news/technology-news/application-of-humidity-and-temperature-stability-chambers-in-climate-tolerance-testing-of-materials-and-products.html

Abstract: In the production and quality inspection of lighting products, power equipment, and outdoor application equipment, the mechanical impact strength of the shell is a core indicator that determines the safety, reliability, and service life of the products. This paper takes the LISUN IK07-10 IK Impact Rating as the research object, systematically expounds its technical principles, structural characteristics, and applicable scenarios, and focuses on analyzing the specific application processes of this equipment in the IK strength testing of lamp housings, the impact testing of metal sheets of power distribution cabinets, and the verification of impact resistance of outdoor equipment. By comparing the parameter settings and test results of different test objects, the testing accuracy and stability of the equipment within the energy range of 2J-50J are verified, providing a scientific basis and practical reference for product quality control in related industries. 1. Introduction Wi...

Abstract​:Aiming at the unclear difference in optical performance among five types of mainstream lighting fixtures in the market, namely bulb lights, PAR lights, LED lights, street lights and tubes, this study adopted the LISUN LMS-6000 Digital Lux Meter (full-function version LMS-6000SF) to conduct a systematic test on key optical parameters of the five types of fixtures, including illuminance, correlated color temperature (CCT), color rendering index (Ra), peak wavelength, flicker depth and retinal blue light hazard. Through scientific design of the test scheme, accurate data collection and comparative analysis, the performance advantages and applicable scenarios of various types of fixtures were clarified. The results show that street lights have outstanding performance in illuminance and anti-flicker, PAR lights have the best color rendering index, and LED lights have balanced comprehensive performance. This study provides reliable data support and technical reference for lighting ...

Abstract With the widespread application of electronic equipment, electromagnetic compatibility (EMC) has become a key indicator in product design and production. This paper takes the LISUN EMI-9KB EMI Receiver Test System as the research object, and analyzes in detail its technical characteristics, testing capabilities and application scenarios. The system adopts a fully enclosed structure and highly conductive materials, achieving excellent shielding effect and fundamentally solving the problem of the equipment’s own interference. Through test procedures and report formats that comply with international standards, the EMI-9KB can meet the requirements of multiple specifications such as CISPR, GB, and FCC, providing reliable support for EMC certification of electronic equipment. Actual test data shows that the measurement accuracy of the system in the 30MHz-1GHz frequency band can reach ±1.5dB, and the repeated test deviation is less than 0.8dB, demonstrating excellent stability and a...

https://www.lisungroup.com/news/technology-news/xrf-analysers-principles-applications-and-advantages.html

This statutory body in Tanzania is rooted in a profound legal foundation, emerging in accordance with the Standard Act No. 3 promulgated by Parliament in 1975, and officially commenced operations on April 6, 1976. Fully funded by the government and affiliated with the Ministry of Industry and Trade, the institution has established a sophisticated organizational structure, comprising six core departments: Process Technology Standards, Engineering Standards, Quality Management, Testing and Calibration, Documentation, and Administration. From standard drafting to metrological calibration, and from quality control to skills training, these departments operate in synergy, serving as the backbone for promoting industrial and commercial standardization and fortifying quality and safety safeguards. As an important member of multiple international standardization organizations, the institution shoulders the responsibility of formulating and managing Tanzania’s national standards, which cover al...

Abstract Conducted radio frequency (RF) immunity testing is a critical component of electromagnetic compatibility (EMC) compliance, ensuring electronic equipment operates reliably in RF-polluted environments. This paper focuses on the CDNE for Conducted RF Immunity test, with a specific analysis of the LISUN CDNE-M316 Coupling and Decoupling Network. The CDNE-M316, designed to meet CISPR 15:2018 and EN 55015 standards, is optimized for testing lighting and similar equipment across a frequency range of 30 MHz to 300 MHz. This study details its technical specifications, working principle, performance characteristics, and practical application in EMC test setups. Comparative data and experimental results demonstrate its superior decoupling efficiency (>30 dB) and impedance matching (50 Ω), validating its role as a cost-effective and reliable solution for conducted RF immunity evaluations. 1. Introduction With the proliferation of wireless communication and power electronic systems, the...

Abstract With the widespread application of DC-powered electronic and electrical equipment in fields such as industrial control, automotive electronics, and renewable energy systems, the stability and reliability of these devices under abnormal power supply conditions have become crucial. Voltage dips and short interruptions at the DC power input port are common electromagnetic disturbance scenarios that can lead to equipment malfunction, data loss, or even permanent damage. To evaluate the immunity of DC-powered equipment to such disturbances, specialized testing equipment is essential. This paper focuses on the Voltage Dips and Interruptions Testers, with a specific analysis of the LISUN CSS61000-29 DC Voltage Dips and Interruptions Generator. It details the design characteristics, technical specifications, compliance standards, and application scenarios of this high-reliability device, providing a comprehensive reference for engineers and researchers engaged in electromagnetic compa...

https://www.lisungroup.com/news/technology-news/performance-and-application-analysis-of-lisun-emi-receiver-test-system.html

https://www.lisungroup.com/news/technology-news/on-the-core-role-of-the-emc-compliance-testing-system-in-modern-electronic-equipment-electromagnetic-compatibility-testing.html

https://www.lisungroup.com/news/technology-news/application-and-practice-of-lisun-cyclic-corrosion-chamber-in-material-corrosion-performance-evaluation.html

Abstract Dust intrusion is a major threat to the reliability and service life of products in industries such as electronics, electrical engineering, and automotive manufacturing. The sand dust test chamber serves as a critical tool to simulate dusty environmental conditions, evaluate product dustproof performance, and verify compliance with industry standards. This paper focuses on the LISUN SC-010 Sand Dust Test Chamber, a representative device designed for testing the physical and functional performance of electronic and electrical products, lamps, electrical cabinets, electrical components, and automotive/motorcycle parts under simulated dust climates. It elaborates on the chamber’s compliance with IP5X and IP6X dustproof rating standards (per IEC 60529), technical specifications, test procedures, and practical applications. By analyzing test data and case studies, this paper confirms that the LISUN SC-010 Sand Dust Test Chamber provides accurate, repeatable results, supporting prod...

Abstract The flammability test for plastics is a fundamental assessment in material science and product safety, particularly for components used in electrical and electronic appliances. Among various testing methods, the glow-wire test stands out for its ability to simulate thermal stresses caused by overheated or glowing parts in equipment. This paper explores the glow-wire test as a physical thermal flammability test for plastics, detailing its principles, procedures, and applications. The focus is on the LISUN ZRS-3H Glow-Wire Test Apparatus, an instrument designed to evaluate the ignition susceptibility, ignition temperature, flammability, and flammability index of plastic materials. The discussion includes experimental data and comparative analysis to underscore the test’s relevance in ensuring compliance with international safety standards. Glow wire tester Introduction Plastics are ubiquitous in modern industries, especially in lighting devices, electronics, and household applia...