Premium Red Phosphor
for High CRI Lighting
Complete red phosphor portfolio from 603nm to 657nm for high CRI lighting, plant lighting, and display applications. Nitride-based and oxide-based options available for diverse packaging requirements.
LED Lighting Industry Pain Points
Understanding the critical challenges facing high CRI LED lighting manufacturers
Low R9 Values
Standard phosphors struggle to achieve high R9 (saturated red) performance, resulting in poor color rendering for red objects and skin tones.
Efficiency Trade-off
Adding red phosphor often significantly reduces luminous efficacy. Balancing CRI and efficiency is a constant challenge.
Thermal Stability
Many red phosphors degrade at high temperatures, affecting long-term reliability in high-power LED applications.
Process Compatibility
Particle size and density variations cause dispensing and settling issues during LED packaging processes.
Complete Red Phosphor Series
Full wavelength range from orange-red to deep red for various CRI and application requirements
Deep Red Series (650-660nm)
450-460nm excitation → Deep red emission for ultra-high CRI (Ra>90) and plant lighting applications
| Model | Peak λ | Particle Size | Brightness | FWHM | Application |
|---|---|---|---|---|---|
| LD-660 | 656.7nm | 10μm | 14.57% | 116.5nm | Ra>95 / R9 Boost |
| LD-650 | 654nm | 8μm | 40.59% | 116.1nm | Ra>90 / High Eff. |
Deep red phosphor emission spectrum showing characteristic peak at 650-660nm wavelength for maximum R9 contribution
For ultra-high CRI applications (Ra>95), recommend LD-660 for its exceptional R9 contribution despite lower brightness. For balanced Ra>90 with better efficiency, choose LD-650 with 40.59% relative brightness — nearly 3x brighter than LD-660.
Standard Red Series (620-640nm)
450-460nm excitation → Red emission for high CRI (Ra>85) general lighting and high-power applications
| Model | Peak λ | Particle Size | Brightness | FWHM | Application |
|---|---|---|---|---|---|
| LDL-630D | 625nm | 18μm | — | 75.7nm | Nitride / High Power |
| LD-640C | 635nm | 16.61μm | 35.9% | — | Display / Signal |
| LD-620 | 623nm | 10.1μm | 104.2% | 90.1nm | Highest Efficiency |
Standard red phosphor series offering the best balance between CRI performance and luminous efficacy
LDL-630D uses nitride crystal structure providing: excellent thermal stability (minimal degradation at high temps), superior chemical resistance, narrow FWHM (75.7nm) for better color saturation, and longer lifespan for demanding outdoor/industrial applications.
LD-620 offers the highest efficiency at 104.2% relative brightness — perfect for Ra>85 general lighting where efficacy matters. For high-power outdoor applications, LDL-630D nitride phosphor provides superior thermal stability and long-term reliability.
Orange-Red Series (600-610nm)
450-460nm excitation → Orange-red emission for warm white lighting and decorative applications
| Model | Peak λ | Particle Size | Brightness | FWHM | Application |
|---|---|---|---|---|---|
| LD-6040 | 605nm | 25-27μm | 52% | 76.5nm | Signal / Decoration |
| FL-6040 | 603nm | 15.67μm | 61.5% | — | Warm White Base |
Orange-red phosphor for warm white lighting (2700-3500K) and ambient/decorative applications
For warm white lighting base, FL-6040 offers better efficiency at 61.5% brightness with finer particle size (15.67μm). LD-6040 with larger particles (25-27μm) is optimized for mid-to-high power packages where settling stability matters.
| Feature | Our Red Phosphors | Standard Products |
|---|---|---|
| Wavelength Options | 603-657nm Full Range | Limited Selection |
| R9 Performance | Up to R9>50 | R9<30 Typical |
| Batch Consistency | CIE ≤0.003 | CIE ≤0.005 |
| Thermal Stability | Nitride Options Available | Standard Only |
| Technical Support | Free Recipe Design | Basic Specs Only |
Not Sure Which Model to Choose?
Our engineers can recommend the optimal phosphor combination based on your target CRI, CCT, and efficiency requirements.
Key Advantages
What sets our red phosphors apart from the competition
Complete Wavelength Range
603nm to 657nm coverage means you can precisely tune your CRI, R9, and CCT targets with a single supplier.
Efficiency & CRI Balance
Multiple options let you choose the optimal trade-off between luminous efficacy and color rendering.
Nitride Options Available
LDL-630D nitride phosphor offers superior thermal stability for high-power and outdoor applications.
Free Recipe Design
Our engineers provide customized phosphor blending recommendations to achieve your target specs.
Where Our Red Phosphors Excel
Proven performance across demanding lighting and display applications
High CRI Commercial Lighting
Retail displays, museums, galleries, and photography studios requiring Ra>90 for accurate color reproduction.
Horticulture & Plant Lighting
Deep red (650-660nm) phosphors promote flowering and fruiting for greenhouse and vertical farming.
Medical & Dental Lighting
Critical skin tone and tissue color rendering for dermatology, dental, and surgical applications.
Fresh Food Display Lighting
Enhance the visual appeal of meat, produce, and baked goods with red-rich spectrum.
Premium Residential Lighting
Warm, comfortable atmosphere with excellent skin tone rendering for living spaces and hospitality.
Display & Signage
LED displays, traffic signals, and indicator lights requiring saturated red color output.
Test Before You Commit
Request a free phosphor sample kit to evaluate CRI performance, process compatibility, and spectral characteristics in your production environment.
What Our Customers Say
Trusted by LED packaging companies worldwide
The LD-650 helped us achieve Ra93 with R9>60 while maintaining >120 lm/W efficiency. It's the best balance of CRI and efficacy we've found.
Batch consistency is excellent. We've been using LDL-630D for our high-power outdoor fixtures for 2 years with no thermal degradation issues.
Their technical support is outstanding. The engineers helped us optimize our phosphor blend to achieve our target 3000K / Ra90 spec within two iterations.
LED Lighting Industry Services
End-to-end support from phosphor selection to mass production
Free Recipe Design
Custom phosphor blending recommendations based on your target CRI (Ra, R9-R15), CCT, and luminous efficacy requirements.
Process Optimization
Guidance on mixing ratios, dispersion methods, dispensing parameters, and curing conditions for optimal results.
Sample Testing Service
Free small-batch testing to verify CRI performance, spectral distribution, and process compatibility.
Fast Sample & Production Support
30-100g samples within 3 working days. MOQ as low as 100g. 24-hour technical response guaranteed.
Consistent Quality You Can Trust
Strict quality control ensures batch-to-batch consistency
Every batch undergoes rigorous testing including spectral analysis, particle size distribution, and thermal stability verification. We guarantee CIE color coordinate deviation ≤0.003 and brightness variation ≤3% between batches. All products come with detailed COA (Certificate of Analysis) and full traceability.
Ready to Improve Your CRI?
Contact us for free consultation and samples
Free Recipe Design
Our engineers design custom phosphor blends to achieve your target CRI, CCT, and efficiency specifications
Free Sample Testing
Evaluate our phosphors in your production environment before committing to volume orders
Fast Delivery
30-100g samples shipped within 3 working days worldwide with tracking
24h Response
Dedicated technical support team responds within 24 hours to all inquiries