This nitride-based red LED phosphor powder is engineered for high-performance 445–465nm blue chip integration, enabling efficient, stable red light emission for warm white lighting, display backlights, and special-purpose LED systems. Fully RoHS compliant, lead-free, and CE certified, it is ideal for B2B buyers in LED chip packaging, lighting system integration, and high-CRI display manufacturing.
Our phosphor powder has been used in over 100+ commercial LED production lines, offering unmatched consistency and real-world reliability in chip-scale packaging, COB modules, and mini-/micro-LED displays.
Core Technical Specifications (With Batch Testing)
Parameter | Specification |
Product Name | LED Chips Red Phosphor Powder Fluorescent Material |
Chemical Composition | (Sr,Ca)AlSiN₃:Eu (nitride-based) |
Emission Color | Vivid Red (Peak at 627.5 ± 2.0 nm) |
Compatible Blue Chips | 445–465 nm excitation (optimal at 450–460 nm) |
Luminous Efficiency | 80–100 lm/W (under standard LED drive current) |
Color Coordinates (CIE1931) | x = 0.6525 ± 0.003, y = 0.3470 ± 0.003 |
Particle Size Options | Standard = 23 µm; Optimized = D50 = 15 ± 2.0 µm |
Purity | ≥ 99.9% (high-purity grade for stable emission) |
Density | Standard: 3.8 g/cm³; High-density: 5.5–6.0 g/cm³ |
Thermal Stability | Tolerates up to 300°C without performance loss |
Safety Certification | SGS |
Packaging | 100g sealed bottle (moisture-proof); 500g/1kg for bulk |
Origin | Made in China |
Supply Capacity
10,000 units/month | Expandable to 5,000 kg/month for OEM projects
Why LED Manufacturers Choose This Red Phosphor
1. Precise, Stable Red Light Output
Emits in the 610–640 nm range with narrow spectral width, enabling:
High-CRI warm white LEDs (Ra ≥ 90)
Deep red display pixels for enhanced contrast
Color consistency across batches (Δx, Δy < 0.005)
2. High Energy Efficiency
Converts blue chip light (450–460 nm) to red output at up to 100 lm/W, enhancing total system efficacy and reducing power loss.
3. Process Compatibility
Ready for integration into existing 450nm blue LED chip lines
Uniform D50 = 15μm option ensures smooth phosphor-silicone dispersion
Fully compatible with COB, SMD, CSP packaging workflows
4. Long-Term Stability in Harsh Environments
Heat resistance up to 300°C
Chemically inert in silicone binders and LED encapsulants
Humidity-resistant and acid/alkali-stable
5. Meets Global Safety & Environmental Standards
SGS
Free of lead, cadmium, mercury, and other restricted substances
Suitable for both indoor and outdoor LED applications
Target Applications
1. Warm White LED Lighting (2700K–4000K)
Blended with YAG yellow and green phosphors, this red phosphor corrects spectral deficiency in warm white LEDs, achieving:
High CRI (Ra > 90)
Low color temperature (2700K–3500K)
Enhanced color fidelity in home, museum, and commercial lighting
2. Industrial & Specialty Lighting
Industrial tubes, task lights, and spotlights in warehouses/factories
Enhanced visibility in low-light or red-sensitive environments
Stable for long-hour use in high-temperature enclosures
3. Decorative & Stage Lighting
High-saturation red effect for architectural highlights, concerts, exhibitions
Works with RGB systems for full-spectrum stage applications
4. Display Backlight & Pixels (Mini/Micro-LED)
Provides high-gamut red output in display modules
Compatible with RGB phosphor mix for Rec.709/DCI-P3 standard
5. Custom LED Use Cases
Medical lighting (e.g. phototherapy, diagnostic tools)
Agricultural lighting (supports photosynthesis in red-sensitive crops)
Ordering, Packaging & Shipping
Logistics Item | Details |
MOQ | 100g (sample testing supported) |
Bulk Packaging | 500g/foil bag, 1kg/drum, with anti-static & moisture barrier |
Supply Ability | 10,000 bottles/month |
Delivery Time | 5–10 days (samples); 7–15 days (bulk, depending on customs/logistics) |
Payment Terms | T/T (wire transfer), Western Union |
Shipping Methods | DHL, FedEx, UPS, with tracking and full customs documentation |
Storage Guidelines | Store in sealed container, 15–25°C, avoid sunlight and humidity |
Shelf Life | 24 months (if stored as recommended) |
Technical Support & Customization
Application-Based Guidance
Our engineers provide usage guidance tailored to your needs, such as:
Phosphor-to-silicone mixing ratio
Curing conditions and thermal profiles
Defect troubleshooting (e.g., uneven brightness, discoloration)
Customization Options
Particle Size Tuning: 15–23μm ranges for various encapsulation processes
Wavelength Adjustment: Optional emission peaks from 605 to 680 nm to fit design targets
High-density Variants: Improved thermal performance for high-power applications
Request a custom version? Our R&D team can support pilot runs and custom formulation trials for qualified OEM clients.
Frequently Asked Questions (FAQ)
Q1: What makes this red phosphor better for warm white LED production?
A1: It compensates for the lack of red emission in blue/yellow phosphor mixes, improving CRI (Ra ≥ 90) and supporting warmer light tones (2700K–3500K).
Q2: Is it compatible with 450nm chips?
A2: Yes. This red phosphor is optimized for 445–465 nm chips, especially 450–460 nm where excitation is most efficient.
Q3: What’s the benefit of the high-density version?
A3: Better heat dissipation and improved mechanical strength, recommended for high-power LEDs or applications with thermal cycling.
Q4: Can I test before bulk purchase?
A4: Absolutely. We offer 100g sample units for testing under your production conditions.
Q5: What's the typical lead time for large orders?
A5: For bulk contracts, production capacity can scale to 5000kg/month, with lead times typically 7–15 days including shipping.
Next Steps: Try It, Quote It, or Customize It
Request Free Sample – Test in your line with full support documents
Download TDS – Detailed technical data and performance specs
Talk to Engineer – Discuss integration, blending, curing, and chip matching
Get Bulk Quote – For standard or customized specifications
[Request Sample] | [Get a Quote] | [Schedule Technical Consultation]
