LED Tester | Christmas Light Tester - LISUN

Abstract In the actual operating environment of electrical and electronic equipment, high-energy transient interference caused by natural lightning induction and large-capacity inductive-capacitive load switching poses a serious threat to the stable operation of equipment power cords and internal connecting wires. As a core testing device, the surge generator working principle can simulate such interference scenarios and provide a unified, standardized basis for evaluating the tolerance of different equipment. This paper takes the LISUN SG61000-5 Surge Generator Working Principle as the research object, combined with the IEC61000-4-5 international standard, and analyzes from the aspects of the device’s working principle, technical parameters, testing process and practical application cases. It intuitively presents its performance advantages and testing effects through table data, aiming to clarify the key role of the surge generator working principle in ensuring the reliability of elec...

https://www.lisungroup.com/news/technology-news/application-of-integrating-sphere-setup-in-the-detection-of-photometric-colorimetric-and-electrical-parameters-of-luminaires.html

https://www.lisungroup.com/news/technology-news/application-of-flammability-testing-labs-in-flame-retardancy-testing-of-equipment-and-materials-across-multiple-fields.html

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...