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LISUN on the 2015 HKTDC Hong Kong Lighting Fair
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LISUN on the 2015 HKTDC Hong Kong Lighting Fair

During the exhibition, Lisun showed its main instruments which attracted many customers to stop and talk. Among them, there are...

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Two test way for High Frequency Adjustable Reference Ballast(25KHz)
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Two test way for High Frequency Adjustable Reference Ballast(25KHz)

HCS-109A has two functions: one is high frequency ballast; second is high frequency digital power meter. As above picture show, after...

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Research of the Optical Parameter’s Test Accuracy on Integrating Sphere Reflective Coating and the Installation Position of LED lighting
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Research of the Optical Parameter’s Test Accuracy on Integrating Sphere Reflective Coating and the Installation Position of LED lighting

During the measurement of luminous flux with integrating sphere, comparing with common lighting source, the luminous flux test accuracy of...

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The Description of Integrating Sphere Coating
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The Description of Integrating Sphere Coating

The ideal integrating sphere paint should have below performances: 1. High-Lambert characteristics (good diffuse reflection characteristics) 2. High reflectance in...

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Why need Auxiliary Lamp and how to use Auxiliary Lamp correctly?
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Why need Auxiliary Lamp and how to use Auxiliary Lamp correctly?

According to IESNA-LM-79-80, when spectroradiometer integrating sphere system tests LED flux, light source’s self-absorption can influence test result, therefore, it...

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How To Build The Darkroom For Goniophotometer?
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How To Build The Darkroom For Goniophotometer?

Goniophotometer measures light intensity performance measurement of luminaries and light source, which is the photometry value in different directions in...

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How to choose right Spectroradiometer & integrating sphere system
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How to choose right Spectroradiometer & integrating sphere system

As far as we known that there have several type spectroradiometer, such as CCD spectroradiometer, mechanical scanning spectrophotometer etc. Generally,...

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LMS-9000A Spectroradiometer New Functions Introduction
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LMS-9000A Spectroradiometer New Functions Introduction

As we known that the quality of LED products depend on lumen, lumen efficiency temperature and CRI etc parameters, the...

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ENERGY STAR for LED Luminaires/Bulb Life Requirements
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ENERGY STAR for LED Luminaires/Bulb Life Requirements

USA Environmental Protection Agency(EPA) and Department of Energy(DOE) successively released Energy Star and Lighting Facts Standards for LED Luminaires/Bulb from...

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