Product Overview
LD-3557 is a high-performance green-yellow LED phosphor specifically designed for high color rendering general lighting applications. With a peak emission wavelength of 527.8nm and dominant wavelength of 557.3nm, this phosphor delivers excellent color rendering performance with Ra≥80 when excited by 445-450nm blue LED chips.
Featuring a 103.21% relative brightness and broad spectrum characteristics (FWHM 104.9nm), LD-3557 is ideal for indoor lighting, commercial lighting, office environments, and residential applications requiring superior color reproduction. The 13μm particle size ensures excellent dispersibility and mixing stability for consistent production quality.
Core Advantages
🎨 High Color Rendering Ra≥80 Achieves Ra≥80 color rendering index, providing natural and accurate color reproduction for demanding lighting applications. | ⚡ Excellent Luminous Efficacy 103.21% relative brightness exceeds standard reference, delivering superior luminous efficacy for energy-efficient lighting. |
🌈 Broad Spectrum Design 104.9nm FWHM provides wide spectral distribution, beneficial for achieving high CRI and excellent color saturation. | ⚙️ Strong Process Adaptability D50=13μm medium particle size ensures good dispersibility and mixing stability, reducing color difference risks in production. |
Not sure if this phosphor fits your application?Our engineers help 200+ companies find the right phosphor every month. Try our selection tool or talk to an expert. |
Key Performance Data
Green-Yellow Emission Color | 527.8 nm Peak Wavelength |
104.9 nm FWHM | 445–450 nm Compatible Chip Wavelength |
x = 0.3486, y = 0.5673 CIE 1931 Coordinates | 13 μm Particle Size (D50) |
5257 K Correlated Color Temperature | 103.21% Relative Brightness |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-3557 | High CRI type |
| Emission Color | Green-Yellow | — |
| CIE 1931 Coordinates | x = 0.3486, y = 0.5673 | Stable color region |
| Correlated Color Temperature (CCT) | 5257 K | Natural white region |
| Dominant Wavelength | 557.3 nm | Visual green-yellow |
| Peak Wavelength | 527.8 nm | Green-yellow region |
| FWHM | 104.9 nm | Broad spectrum |
| Relative Brightness | 103.21% | High brightness |
| Color Rendering Index (Ra) | ≥80 | Good color rendering |
| Particle Size (D50) | 13 μm | Medium particle |
| Compatible Chip Wavelength | 445–450 nm | Blue LED chip |
| Suitable Packaging Type | SMD / Various packages | High CRI type |
| *All parameters are based on standard laboratory test conditions (25°C, 50% RH). Actual performance may vary with package design, resin system, and process conditions. | ||
Not Sure If This Is the Right Match?Explore our intelligent selection tools to find the perfect phosphor for your application, or let our experts customize a solution tailored to your specific requirements. |
Performance Analysis
📊 Spectral Characteristics Analysis LD-3557 exhibits typical green-yellow emission characteristics under blue light excitation, with the peak at 527.8nm. The broad 104.9nm FWHM helps achieve Ra≥80 color rendering, improving lighting quality for general, commercial, and residential applications. | 📉 Particle Size Distribution Medium particle size design with uniform distribution at D50=13μm ensures good dispersibility and mixing stability. This reduces color difference risks in mass production, improving product consistency and yield rates. |
Recommended Applications
💡 High CRI General Lighting Indoor lighting, commercial lighting, and office lighting requiring Ra≥80 color rendering performance. | 🏢 Commercial & Retail Lighting Shopping malls, exhibition halls, and specialty stores with color reproduction requirements. |
🏠 Residential Lighting Living rooms, bedrooms, and dining rooms requiring comfortable light color and good color rendering. | 🔦 General Professional Lighting Work lighting and professional lighting applications with color rendering requirements. |
🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample to evaluate LD-3557 in your production environment, or contact our application engineers for high CRI lighting design support. 🚚 Ships in 3 business days ⏰ Reply within 24 hours 📜 COA included |
Why Choose LD-3557?
🔵 Precise Blue Chip Matching Optimized for 445-450nm blue LED chips with clear application solutions and efficient wavelength conversion. | 🌈 Excellent Luminous Efficacy 103.21% relative brightness meets high luminous efficacy lighting requirements while maintaining Ra≥80. |
🌟 Good Color Rendering Ra≥80 Suitable for high color rendering lighting applications with natural color reproduction, meeting commercial and residential quality standards. | |
Packaging & Storage
| Packaging | High-seal moisture-proof packaging, suitable for transportation and long-term storage |
| Storage Conditions | Store sealed in a dry, cool environment. Avoid direct sunlight, high temperature, and high humidity. |
| Usage Recommendations | Use as soon as possible after opening; reseal unused portions to minimize moisture exposure. |
| Shelf Life | 12 months under recommended sealed storage conditions |
Frequently Asked Questions (FAQ)
❓ What type of blue LED chip is LD-3557 suitable for? LD-3557 is optimized for blue LED chips with wavelength range of 445-450nm, providing efficient wavelength conversion and stable color output. | ❓ What are the advantages of 13μm particle size? 13μm medium particle size improves mixing uniformity and encapsulation stability, reducing color difference risks in mass production. |
❓ How to understand 103.21% relative brightness? It represents brightness level relative to a reference sample under standard test conditions. 103.21% exceeds the standard reference value, suitable for high-efficacy lighting. | ❓ What does Ra≥80 mean? Ra≥80 indicates good color rendering performance, capable of reproducing object colors naturally—suitable for general, commercial, and residential lighting. |
Samples & Technical Support
Get LD-3557 Technical Support and Samples TodayWe offer small-batch sample services for testing and validation before mass production. For sample requests, parameter confirmation, or application solution support, please contact our technical and sales team. |
