Abstract With the rapid development of the lighting industry, quality control of light source products has become increasingly crucial, and accurate testing of optical, color, and electrical parameters is the core link in measuring light source quality. The LISUN LPCE-2 (LMS-9000C) LED Lumen Meter, as a high-precision spectroradiometer & integrating sphere system, is capable of conducting comp...
Abstract In the lighting industry, the photometric, colorimetric, and electrical parameters of luminaires are core indicators for measuring product quality and performance, directly influencing lighting effects, energy efficiency, and user experience. As a professional testing equipment integrating a high-precision spectral radiometer and an integrating sphere system, the integrating sphere set...
Abstract With the diversification of lighting technologies, the accurate measurement of luminous performance has become crucial for quality control and standard compliance across lighting product categories. Lumen test equipment, as the core tool for evaluating light output and optical characteristics, plays an irreplaceable role in testing energy-saving lamps, fluorescent lamps, HID lamps, cold c...
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...
The demand for high-quality lighting solutions has led to a significant focus on testing and standardizing various light sources, including energy-saving lamps, fluorescent lamps, high-intensity discharge (HID) lamps such as high-pressure sodium and mercury lamps, cold cathode fluorescent lamps, and LEDs. To ensure compliance with international standards such as CIE 177, CIE-13.3, CIE-84, ANSI-C78...
Introduction In recent years, the demand for high-efficiency lighting systems has increased due to global energy-saving initiatives. This trend has resulted in the widespread use of energy-saving lamps, fluorescent lamps, high-intensity discharge (HID) lamps, and especially light-emitting diode (LED) lamps. Accurate photometric and colorimetric measurement of these light sources is essential for e...
Abstract The demand for efficient and reliable lighting solutions has led to various light sources, including bulb lights, PAR lamps, LED lights, street lights, and tubes. This study aims to compare the luminous performance of these light sources using the LISUN LPCE-2 (LMS-9000) integrating sphere system. Key parameters analyzed include luminous flux, luminous efficacy, and power consumption. Int...
Hong Kong, October 27-30, 2024 – LISUN is excited to announce its participation in the 2024 Hong Kong Lighting Exhibition from October 27th to 30th. As a leading global provider of lighting solutions, LISUN will present a range of lighting test instruments and technologies designed to address the evolving demands of the international lighting market. With a strong commitment to quality and eff...
LISUN, a leading provider of lighting testing and measurement solutions, is excited to announce its participation in the International Trade Show of Lighting Equipment Light 2024 in Warsaw, Poland. This prestigious event is set to take place from Jan. 31th to Feb 2nd, and LISUN will be showcasing its latest innovations in lighting technology. LISUN Lighting Fair in Poland LISUN specialized in LED ...
What is Calibration Certificate? The calibration certificate provides valuable information on the quality and measurement accuracy of equipment. Calibration is the process used to maintain the accuracy of measuring device. This involves comparing the device to a known reference that is highly accurate in relation to the device being calibrated. What is the Information in Calibration Certificate In...
Dubai, 16th-18th, January, 2024 – LISUN will participate in the Lighting Exhibition held in Dubai from January 16th to 19th, 2024. As a leading global supplier of lighting solutions, LISUN will showcase its latest innovative products and technologies to meet the growing demand of the global lighting market. LISUN Lighting has always been committed to providing customers with high-quality and e...
In photometry, the measurement of the power of light is carried out using two different instruments: a goniophotometer and an integrating sphere. Both have their own salient features which make them appropriate for different types of flux testing and measurement. Although they are used for the same purpose i.e. optical power measurement, they have different characteristics and principles. While it...
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