Innovation | Action | Excellence
Flying with Light

grading room棉花分级室光源

D75 Standard LED Light Source Cotton Grading Room Simulated Daylight Illumination System

D75标准LED光源棉花分级室模拟昼光照明系统

Column:棉花分级室光源Brand:PerfectlightViews:292
The D75 standard light source box is one of a series of standard light sources specified by the International Commission on Illumination (CIE) to simulate north daylight. The D75 standard LED light source box is primarily used in cotton grading rooms.

  • Introduction
  • Application
  • Literature
  • Maintenance

Standard light sources are widely used in color management fields such as textiles, printing and dyeing, clothing, painting, electroplating, coatings, inks, pigments, photography, and more. They are used for visual assessment of material color, color matching, and color difference evaluation. The purpose is to conduct production, sample testing, quality control, and acceptance under the same standard lighting conditions, accurately verifying color deviations in products, ensuring that product color quality meets the requirements, and thus improving product quality.

The D75 standard light source box is one of a series of standard light sources specified by the International Commission on Illumination (CIE) to simulate north daylight. The D75 standard LED light source box is primarily used in cotton grading rooms. Cotton grading has specific requirements for lighting fixtures and must comply with the standards for "Equipment and Artificial Lighting for Cotton Grading Room" as specified in "ISO 4911-1980 Textiles - Cotton Fibres" and "GB/T 13786-2022 Simulated Daylight Illumination for Cotton Grading Room."

The national standard "Simulated Daylight Illumination for Cotton Grading Room" (GB/T 13786-2022), in which Beijing Perfectlight Technology Co., Ltd. participated in its formulation, was officially promulgated in October 2022 by the State Administration for Market Regulation and the National Standardization Administration. It will be implemented on May 1, 2023. The issuance of this standard fully demonstrates the technical strength and industry-leading position of Perfectlight Technology as a benchmark enterprise in the "Cotton Grading Room Simulated Daylight Illumination System."

Perfectlight Technology's involvement in drafting the D75 national standard

Product Highlights

● The light output panel can be opened for easy replacement and maintenance;

● Universal structure for hanging or embedding, ready for immediate use;

● Standard power box, can be used individually or in combination;

Key Features

● Precise/Stable

Using LED light source beads, it surpasses the national standard for D75 light source, offering more precise and stable color rendering without spectral peaks;

● Easy Light Intensity Adjustment

With a high color rendering index and an adjustable light intensity remote control feature, it allows for easy light intensity adjustments, ensuring consistent lighting even as the source ages;

● Doubled Illuminance

Common light source tubes provide an illuminance of 750±100 lx on the observation surface, whereas LED light sources can reach an illuminance of 750~1600 lx, offering higher brightness;

● Fourfold Lifespan

Common fluorescent light sources experience a decline in performance after 2000~3000 hours of use, whereas LED light sources can last up to 12,000 hours;

● Comfortable/Efficient

Say goodbye to the flicker issues of fluorescent light sources, significantly reducing fatigue among inspection personnel and making the inspection process more comfortable and efficient;

Product Parameters

d75 cotton standard light source parameters.jpg

d75 cotton standard light source spectral matching.jpg

d75 cotton standard light source light flux change curve.jpg

● Illuminance E(lx): 1152.18   

● Color Temperature(K): 7525   

● Correlated Color Temperature(K): 7550   

● Color Rendering Index Ra: 99.2

Color chart of D75 standard LED light source cotton grading room simulated daylight illumination system

Color Rendering Index of D75 standard LED light source cotton grading room simulated daylight illumination system

Related Products