Product Overview
LD-650 is a deep red LED phosphor with a peak emission wavelength precisely positioned at 654nm, a dominant wavelength of 606.9nm, and a relative brightness of 40.59%. Featuring an ultra-fine particle size design (D50=8μm), it offers excellent dispersion performance and process stability, making it particularly suitable for high-precision SMD packaging and high color rendering illumination applications.
With its unique performance in the deep red spectral region and ultra-wide spectral characteristics (FWHM 116.1nm), LD-650 can be widely applied in ultra-high color rendering white lighting, plant lighting, medical lighting, and other scenarios with extremely high requirements for red light components and R9 color rendering performance.
Core Advantages
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🔴 Precise Deep Red Output 654nm peak wavelength positioned in deep red region, significantly enhancing R9 color rendering. |
⚡ Medium-High Brightness 40.59% brightness—nearly 3x brighter than LD-660, reducing impact on overall efficacy. |
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🌈 Ultra-Wide Spectrum 116.1nm FWHM covering orange-red to deep red with excellent color rendering performance. |
📏 Ultra-Fine Particle Size D50=8μm, excellent dispersion for high-precision SMD and thin-layer coating. |
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
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654 nm Peak Wavelength (Deep Red) |
116.1 nm FWHM (Ultra-Wide) |
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40.59% Relative Brightness |
8 μm Ultra-Fine Particle Size |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-650 | — |
| Peak Emission Wavelength | 654 nm | Deep Red Light |
| Dominant Wavelength | 606.9 nm | Visual Red Light |
| Relative Brightness | 40.59% | Medium Brightness |
| FWHM | 116.1 nm | Ultra-Wide Spectrum |
| CIE Color Coordinates | x=0.6554, y=0.3442 | Deep Red Region |
| Median Particle Size (D50) | 8 μm | Ultra-Fine Particles |
| Correlated Color Temperature | 1001 K | Pure Red Characteristics |
| Color Rendering Index (Ra) | >80 | High CRI After Mixing |
| Compatible Chip Wavelength | 450–460 nm | Blue Light Excitation |
| Suitable Packaging Type | SMD (Preferred) | Ultra-fine optimized |
| *All data are measured under standard laboratory testing conditions. Shelf life: 12 months. | ||
Performance Analysis
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📊 Brightness Advantage
LD-650's 40.59% brightness is nearly 3x that of LD-660 (14.57%), significantly reducing impact on overall luminous efficacy while maintaining excellent R9 performance for Ra>85-90 applications. |
📉 Ultra-Fine Particle Benefits
8μm ultra-fine particles provide exceptional dispersion and flowability for high-precision SMD packaging. Ideal for thin-layer coating with consistent color distribution. |
Recommended Applications
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🎨 Ultra-High CRI Lighting Museums, art galleries, photography studios requiring Ra>90 with excellent R9 performance. |
🏥 Medical Lighting Dermatology, dentistry, and diagnostic lighting requiring accurate color reproduction. |
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🌱 Plant Lighting Supplementing deep red light to promote flowering, fruiting, and plant morphogenesis. |
🍖 Fresh Food Display Enhanced red saturation for meat, fruit, and produce display with visual appeal. |
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🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample to evaluate LD-650 in your production environment, or contact our application engineers for technical support. 🚚 Ships in 3 business days ⏰ Reply within 24 hours 📜 COA included |
Why Choose LD-650?
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⚡ Balanced Performance 40.59% brightness balances color rendering and efficacy—ideal for Ra>85 with some efficacy requirements. |
🔴 Excellent R9 654nm deep red is core component for achieving Ra>90 ultra-high CRI lighting. |
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📏 SMD Optimized 8μm ultra-fine particles excel in high-precision automated SMD production. |
Packaging & Storage
| Packaging | High-seal moisture-proof bottles (100g, 500g, 1kg specifications available) |
| Storage Conditions | Store sealed in dry, cool environment (≤25℃, ≤60%RH). Avoid sunlight and corrosive gases. |
| Shelf Life | 12 months sealed; use within 6 months after opening. Use anti-settling additives for ultra-fine particles. |
Frequently Asked Questions (FAQ)
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❓ How does LD-650 compare to LD-660? LD-650 (654nm, 40.59%) offers nearly 3x brightness vs LD-660 (657nm, 14.57%), with similar ultra-wide spectrum. Choose LD-650 for Ra>85-90 with efficacy needs; LD-660 for ultimate Ra>95. |
❓ What packaging processes are compatible? SMD: ★★★★★ (optimal); COB: ★★★★☆; DIP: ★★☆☆☆ (fast settling). Use anti-settling additives and high-speed dispersion for best results. |
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❓ What are the process tips for ultra-fine particles? 8μm particles are sensitive to contamination—operate in clean environment. Use high-speed or ultrasonic dispersion. Add anti-settling additives to extend operation window. |
❓ Do you support small-batch samples? Yes. We provide free samples with complete technical support including light mixing solutions and process optimization guidance. |
Samples & Technical Support
Get LD-650 Technical Support and Samples TodayFree high CRI light mixing solution design, ultra-fine particle process optimization, and sample testing services. 24-hour rapid response with customized solutions. |
