Product Overview
LD-4155L is a yellow-green phosphor specifically designed for high-power LED packaging, compatible with 450-455nm blue LED chips. This product features a 9.6μm medium particle size design, maintaining good fluidity while providing stable settling characteristics.
LD-4155L has a color temperature of up to 7000K—the highest color temperature in the series—achieving bright cool white light output for high-power lighting applications requiring high brightness and high visibility.
Core Advantages
❄️ High Color Temperature Cool White 7000K color temperature for bright, crisp cool white effect ideal for industrial use. | ⚡ High Relative Brightness 109% relative brightness with outstanding luminous efficiency. |
💪 High-Power Compatibility 9.6μm particle size for stable settling, suitable for high-power packaging. | 🔵 Short-Wave Blue Matching Optimized for 450-455nm blue LED chips with efficient conversion. |
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
Yellow-green Emission Color | 543.8 nm Peak Wavelength |
111.3 nm FWHM | 450–455 nm Compatible Chip Wavelength |
x = 0.4172, y = 0.5539 CIE 1931 Coordinates | 9.6 μm Particle Size (D50) |
7000 K Highest CCT in Series | 109% Relative Brightness |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-4155L | High-power type |
| Emission Color | Yellow-green | — |
| CIE 1931 Coordinates | x = 0.4172, y = 0.5539 | — |
| Correlated Color Temperature (CCT) | 7000 K | Cool white |
| Dominant Wavelength | 567.8 nm | — |
| Peak Wavelength | 543.8 nm | Yellow-green region |
| FWHM | 111.3 nm | Broad spectrum |
| Relative Brightness | 109% | High brightness |
| Particle Size (D50) | 9.6 μm | High-power type |
| Compatible Chip Wavelength | 450–455 nm | Blue LED chip |
| Suitable Packaging Type | High-power / COB | — |
| Shelf Life | 24 months | Sealed storage |
| *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 LD-4155L exhibits a broadband emission spectrum with a peak at 543.8nm and a yellow-green hue. Combined with 450-455nm blue LED chips, it produces 7000K cool white light. | 📉 Particle Size Distribution D50 is controlled at 9.6μm. The medium particle size balances fluidity and settling stability, suitable for high-power packaging processes. |
Recommended Applications
🏭 High-Power High-Bay Lights Industrial high-bay lighting for warehouses and factories. | 🌙 Outdoor Lighting Outdoor and street lighting requiring high visibility. |
🏭 Industrial Lighting Factory and workshop lighting with cool white output. | ❄️ Cold Storage Lighting Cold storage and high color temperature scenarios. |
🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample to evaluate LD-4155L 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-4155L?
❄️ Highest Color Temperature 7000K highest color temperature in series for bright cool white applications. | 💪 High-Power First Choice 9.6μm particle size optimized for high-power packaging. |
⚡ High Luminous Efficacy 109% relative brightness for high efficiency in high-power applications, ensuring optimal performance and energy savings. | |
Packaging & Storage
| Packaging | High-seal moisture-proof bottles suitable for long-term storage and transportation |
| Storage Conditions | Store sealed in a dry, cool environment. Avoid direct sunlight, high temperature, and high humidity. |
| Usage Recommendations | Use promptly after opening; reseal unused portions to minimize moisture exposure. |
| Shelf Life | 24 months under recommended sealed storage conditions |
Frequently Asked Questions (FAQ)
❓ What scenarios is 7000K color temperature suitable for? 7000K cool white light is bright and crisp, suitable for factories, warehouses, outdoor areas, cold storage, and other lighting scenarios requiring high brightness and high visibility. Not recommended for residential environments requiring warm ambiance. | ❓ What is the difference from LD-4155? LD-4155L has a 9.6μm particle size (high-power packaging), while LD-4155 has a 7.4μm particle size (low-power packaging). Color temperature differs: LD-4155L is 7000K, LD-4155 is 4122K. |
❓ Can it be blended with other phosphors? Yes. LD-4155L can be blended with other phosphors to achieve different color temperatures. | ❓ Do you offer small-batch samples? Yes. We can provide 50–100g evaluation samples for testing and verification. Contact our sales team for sample requests. |
Samples & Technical Support
Get LD-4155L 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. |
