Product Overview
LD-5049 is an ultra-warm white phosphor specifically designed for 475-478nm blue LED chips. This product has a color temperature of only 2700K—the lowest color temperature in the series—achieving warm light color similar to incandescent lamps.
LD-5049 features a 7.01μm fine particle size design with a 128.4nm ultra-wide FWHM for extremely soft, rich light color, suitable for lighting scenarios creating warm ambiance such as bedrooms, hotels, and restaurants.
Core Advantages
🌡️ Ultra-Low Color Temperature 2700K color temperature similar to incandescent lamp warm light color. | 🌈 Widest Spectrum in Series 128.4nm FWHM for extremely rich, soft light color with high comfort. |
🔵 Long-Wave Blue Compatibility Optimized for 475-478nm blue LED chips for efficient conversion. | 📏 Fine Particle Size D50=7.01μm for low-power packaging with precision dispensing. |
Not sure if this phosphor fits your application?Our engineers help 200+ companies find the right phosphor every month. |
Key Performance Data
Yellow Emission Color | 574.2 nm Peak Wavelength |
128.4 nm Widest FWHM | 475–478 nm Compatible Chip |
x = 0.5004, y = 0.4923 CIE 1931 Coordinates | 7.01 μm Particle Size (D50) |
2700 K Lowest CCT | 80% Relative Brightness |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-5049 | — |
| Emission Color | Yellow | — |
| CIE 1931 Coordinates | x = 0.5004, y = 0.4923 | — |
| CCT | 2700 K | Ultra-warm white |
| Dominant Wavelength | 578.7 nm | — |
| Peak Wavelength | 574.2 nm | — |
| FWHM | 128.4 nm | Ultra-wide |
| Relative Brightness | 80% | Stable |
| Particle Size (D50) | 7.01 μm | — |
| Compatible Chip | 475–478 nm | Long-wave blue |
| Packaging Type | Straw hat / DIP | Low-power |
| *All parameters based on standard lab conditions. | ||
Performance Analysis
📊 Spectral Characteristics Ultra-broadband emission with peak at 574.2nm and 128.4nm FWHM—the widest in the series. Fully extends toward red, forming warm, rich 2700K light color. | 📉 Particle Size Distribution D50 at 7.01μm. Fine particle size suitable for precision processes in low-power packaging. |
Recommended Applications
✨ Ambient Lighting Creating warm, relaxing atmosphere for leisure spaces. | 🛏️ Bedroom Fixtures Bedroom lighting with incandescent-like warm color temperature. |
🏨 Hotel Lighting Hotel rooms and lobbies requiring warm, welcoming ambiance. | 🍽️ Restaurant Lighting Dining spaces and cafes creating intimate atmosphere. |
🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample or contact our engineers for support. 🚚 Ships in 3 days ⏰ 24h reply 📜 COA included |
Why Choose LD-5049?
🌡️ Warmest Color Temperature 2700K lowest CCT in series creates the warmest lighting ambiance. | 🌈 Ultimate Light Color Quality 128.4nm widest FWHM for rich, natural light color. |
🔵 Long-Wave Chip Dedicated Best matching choice for 475-478nm chips with optimized efficiency. | |
Packaging & Storage
| Packaging | High-seal moisture-proof bottles |
| Storage | Sealed, dry, cool environment |
| Shelf Life | 24 months sealed |
FAQ
❓ What scenarios is 2700K suitable for? Similar to incandescent lamp color, suitable for bedrooms, hotels, restaurants, leisure spaces requiring warm, relaxing ambiance. | ❓ Is 80% relative brightness low? Normal level for ultra-warm white models. Design focuses on light color quality for ambient lighting, not extreme brightness. |
❓ Can it be blended? Yes. LD-5049 can be blended with other LD series phosphors for color temperature adjustment. | ❓ Sample availability? Yes, 50-100g samples available for testing. |
Samples & Technical Support
Get LD-5049 Support TodayContact our technical and sales team. |
