High Color Rendering Index LED Daylight Lamp with Reduced Blue Light

Blue Light Attenuated LED Fluorescent Lamps with High Color Rendering Index

As a new fourth-generation light source, LED possesses many unique technical advantages compared to traditional light sources, such as high luminous efficacy, long lifespan, good directionality, environmental friendliness, energy efficiency, and convenient control.

The main issue is the excessively high intensity of blue light in current LED light sources, particularly the peak blue light at 450nm, which is characterized by relatively high intensity. The harm this intense blue light poses to the human retina has become a significant problem constraining LED lighting, attracting increasing global attention.

The World Health Organization has explicitly issued an announcement stating that ordinary LED lighting sources are harmful to the human retina; the relevant international photobiological safety standard for LED lighting sources, IEC/EN62471, has also been published. Big data from authoritative medical institutions shows that the incidence of retinal lesions has multiplied in recent years, primarily due to the influence of mobile phones, iPads, LCD TVs, electronic product LED screens, and ordinary LED lamps.

The recently popular "full spectrum" LED lamps on the market merely "hide" the excessive blue light within red and green light; in fact, the hazard of excessive blue light remains.

Explanation of Color Rendering Index for LED Light Sources

• The ability of a light source to render the colors of objects is called color rendering. To correctly represent the original colors of materials, a light source with a high Color Rendering Index (Ra) is required. Sunlight's CRI is defined as 100. The closer the CRI (Ra) value is to 100, the better the color rendering.
• When evaluating the color rendering of a light source, 15 sample colors are used. The special color rendering index R9 is an indicator for evaluating the quality of LED reproduction of vivid red colors. High values for both Ra and R9 indicate a high-quality LED.
• Compared to ordinary LEDs, full-spectrum LEDs have a more continuous spectrum and a wider color gamut; the Color Rendering Index Ra is significantly improved, closer to 100.
• Color Rendering Index (Ra) Grade, Color Rendering, General Application:
  • 90—100 1A Excellent Locations requiring precise color comparison
  • 80—89 1B / Locations requiring correct color judgment
  • 60—79 2 Ordinary Locations requiring medium color rendering
  • 40—59 3 / Locations with low color rendering requirements
  • 20—39 4 Poor Locations with no color rendering index requirements
• Reputable LED product manufacturers will comprehensively consider factors such as color temperature accuracy, color rendering index, and brightness to select suitable chips.
• Good LED luminaires require correct color temperature and good anti-glare (blue light attenuation) functionality. For general applications, a color rendering index above 80 is sufficient. However, for some special application scenarios, such as art classrooms, photography studios, operating rooms, etc., there are specific requirements for a high color rendering index while meeting other functional prerequisites.

Advantages of Studio-Specific Blue Light Attenuated Fluorescent Lamps with High Color Rendering Index

The studio-specific LED fluorescent lamp products developed and produced by our company utilize industry-leading high-brightness LED chips, operated under derated conditions, paired with long-life, high-redundancy power supplies, and combined with efficient heat dissipation technology. While achieving a color rendering index >97, the luminous flux reaches over 118 lm/W, far exceeding the industry level of 85-90 lm/W. This ensures a continuous service life of 50,000 hours with less than 5% lumen depreciation over 10 years. The product supports single-end power input. The housing is made of modified plastic, abandoning glass material for lightweight and safety.

With a color temperature above 5300K, the light source is close to natural light, providing a bright feeling that helps with concentration. It is suitable for places such as meeting rooms, classrooms, drafting rooms, design studios, library reading rooms, and display windows.

1. High Color Rendering Index: Excellent color reproduction performance.

2. Full Spectrum: Rich light spectrum, good detail presentation.

3. Blue Light Attenuation: Good picture reproduction, solving the issue of picture distortion caused by excessive blue light radiation.

★ Test Report Provided by CTI (Centre Testing International)

The blue light hazard measurement for our company's LED fluorescent lamp products is 5.50, under the condition where the "No Hazard" index allows for 100 units!
The testing standard references EU standards, but the color temperature is increased from the EU standard's 4000K to 5600K!

★ Partial Report Interpretation

• It should be noted: The "No Hazard" index in the test report is a relatively harmless indicator that the current LED lighting industry has to set because it cannot achieve a completely ideal state.
• The corresponding index for our LED fluorescent lamps is listed in the red box, showing a significant difference from the so-called "No Hazard" index, achieving the industry's highest level of photobiological safety.
• While guaranteeing a color rendering index greater than 96 and a color temperature of 5600K, our product's index in reducing blue light hazard currently ranks first in the world!
• An important supplementary note: In the test report, the "No Hazard" range for blue light is within 100. However, the higher this test data is for a product, the cumulative harmful effect on vision still exists.
• Compared to the "speculative" method of reducing blue light radiation under yellow light bands (3500K—4000K), ours achieves the blue light radiation index under a daylight-like band (5500K-5800K). Under the spectral condition of 5500K—5800K, we have achieved low power consumption and excellent blue light radiation control.

Blue Light Attenuated LED Fluorescent Lamp Parameters with High CRI – Mass Production Version

CIE Color Parameters :
Chromaticity Coordinates : x = 0.3373 y = 0.3472 / u’ = 0.2078 v’ = 0.4813(duv=1.00e-03)
Correlated Color Temperature :Tc=5299K Dominant Wavelength :λd=564.8nm Color Purity :Purity=5.4%
Peak Wavelength :λp=453nm Half Width :∆λp=23.5nm Color Ratio :R=18.9% G=75.1% B=5.9%
Color Rendering Index :Ra=96.0
R1 =96 R2 =97 R3 =99 R4 =96 R5 =96 R6 =95 R7 =95
R8 =94 R9 =86 R10=95 R11=99 R12=77 R13=96 R14=99 R15=93
Classification :OUT White Light Classification :ANSI_5000K
Photometric Parameters :
Luminous Flux Φ = 1429 lm Luminous Efficacy : 93.33 lm/W Radiant Flux Φe = 5.380 W
Electrical Parameters :
Voltage V = 220.0 V Current I = 0.07400 A Power P = 15.31 W Power Factor PF = 0

^{Relative Spectral Diagram at 5300K Color Temperature}

★ Comparison Table of Various Performance Technical Indicators for T8 Lamps

^{Standard Color Temperature Value of Sunlight: 5500K}

★ Energy Consumption Comparison Table: Electronic Fluorescent Lamps vs. Photobiologically Safe LED Fluorescent Lamps

Notes:
1. The lifespan of electronic fluorescent lamps is generally around 1 year, with an effective luminous flux of 1200 LM for a 40W lamp.
2. The lifespan of LED fluorescent lamps is over 5 years, with an effective luminous flux of 1768 LM for a 13W lamp.
3. Electricity cost is calculated at 0.5 RMB per kWh.

Requirements for LED Fluorescent Lamps in Art Classrooms

High-standard art classrooms are places that require precise lighting environments. In addition to the requirement for high color rendering index (Ra > 90) to perfectly present the true colors of objects, the standard illuminance value for art classroom desktops is 500 lx. Our company's blue light attenuated full-spectrum LED fluorescent lamps fully meet the standards for art classroom lighting. While ensuring the lighting requirements of the art room, they also protect students' eyes and reduce eye fatigue from prolonged use. The core advantage lies in the blue light attenuation performance, which ensures picture reproduction accuracy, completely solving the problem of picture distortion caused by excessive blue light radiation from ordinary LED light sources.

Summary of Advantages of Blue Light Attenuated Full-Spectrum LED Fluorescent Lamps with High CRI

Dual Guarantee of Biosafety & Energy Efficiency/Environmental Protection Truly provides a set of LED lighting products and solutions for the art education market that balances photobiological safety with energy efficiency and environmental protection.

Solves the Blue Light Problem Full-spectrum blue light attenuated LED fluorescent lamps with high CRI completely solve the problem of excessively strong blue light radiation in traditional LED lighting products.

Meets Market Demand Addressing the art education market's demand for high color rendering index light sources, the blue light attenuated LED fluorescent lamps with high CRI achieve a high industry level and belong to the category of photobiologically safe products!

West-HN (Hainan West Electric Technology Co., Ltd.)

Hainan West Electric Technology Co., Ltd. envisions "making standardized industrial IoT simpler." Focusing on the IoT industry chain direction, we continuously conduct R&D in indoor positioning, sensor control, and data transmission product-related fields. We adopt Lego-like production to precisely meet the small-volume, high-variety demand characteristics of industrial IoT products, providing solutions for complex environments and personalized customer needs, truly realizing a new supply-demand relationship with low inventory and high satisfaction.

The company has R&D centers in Shanghai, Suzhou, Chengdu, and Taipei. Upholding the group's nearly 40 years of good business resources and reputation, we firmly believe in the business philosophy of "being experts in the industry." We excel in channels, are sensitive to the market, focus on products, ensuring reliability in "R&D," stability in "production," and quality in "sales." We are always dedicated to the ultimate satisfaction of personalized scenario needs for industrial IoT customers.

Regarding products, we have both Zigbee positioning products cultivated by our in-house R&D team for over 10 years and UWB positioning products developed by teams in Shanghai and Taipei, meeting different customer requirements for positioning accuracy. Simultaneously, the company also introduces Bluetooth positioning products to supplement our self-developed solutions, comprehensively meeting the needs of various customers.

In terms of software support, we integrate overall solutions across industries, actively open interfaces and source code for system integrators to join, and facilitate related system software companies in creating case demonstrations based on our products, broadening the application of IoT indoor positioning.