Product Overview
LD-4155 is a yellow-green phosphor specifically designed for low-power LED packaging, compatible with 450-455nm blue LED chips. Under blue light excitation, it emits yellow-green light with a peak wavelength of 542 nm.
This product features a 7.4μm fine particle size design with excellent fluidity, suitable for straw hat type, piranha type DIP packaging, and small-size SMD packaging. With a relative brightness of 110.28% and a color temperature of 4122K, LD-4155 produces natural white light output for indicator lights and small-scale lighting applications.
Core Advantages
📏 Fine Particle Size Design D50=7.4μm with excellent fluidity for precision dispensing in low-power packaging applications. | ⚡ High Relative Brightness 110.28% relative brightness—outstanding luminous efficacy even for low-power applications. |
🌡️ Natural White Light Output 4122K color temperature for natural, comfortable light color suitable for various applications. | 🔵 Short-Wave Blue Compatibility Optimized for 450-455nm blue LED chips with efficient wavelength 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 | 542 nm Peak Wavelength |
111.1 nm FWHM | 450–455 nm Compatible Chip Wavelength |
x = 0.4195, y = 0.5519 CIE 1931 Coordinates | 7.4 μm Particle Size (D50) |
4122 K Correlated Color Temperature | 110.28% Relative Brightness |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Product Model | LD-4155 | Low-power type |
| Emission Color | Yellow-green | — |
| CIE 1931 Coordinates | x = 0.4195, y = 0.5519 | — |
| Correlated Color Temperature (CCT) | 4122 K | Natural white |
| Dominant Wavelength | 567.6 nm | — |
| Peak Wavelength | 542 nm | Yellow-green region |
| FWHM | 111.1 nm | Broad spectrum |
| Relative Brightness | 110.28% | High brightness |
| Particle Size (D50) | 7.4 μm | Fine particle |
| Compatible Chip Wavelength | 450–455 nm | Blue LED chip |
| Suitable Packaging Type | Straw hat / DIP / SMD | Low-power type |
| 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-4155 exhibits a broadband emission spectrum with a peak at 542nm and an FWHM of 111.1nm. Combined with 450-455nm blue LED chips, it produces approximately 4122K natural white light. | 📉 Particle Size Distribution D50 is controlled at 7.4μm, providing excellent fluidity suitable for automatic dispensing processes in low-power packaging applications. |
Recommended Applications
💡 Straw Hat Type LEDs Traditional through-hole straw hat LED packages for indicator and lighting applications. | 🔌 Piranha LEDs Piranha-style LED packages for automotive and signal lighting applications. |
🔔 Indicator Lights Status indicators and signaling applications requiring natural white output. | 📱 Electronic Backlighting Small-scale lighting and electronic device backlight applications. |
🚀 READY TO GET STARTED? Test This Phosphor in Your ApplicationRequest a free sample to evaluate LD-4155 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-4155?
📏 Low-Power Dedicated 7.4μm fine particle size optimized for low-power packaging processes with excellent fluidity. | 🌡️ Natural White Light 4122K color temperature between warm white and neutral white, widely applicable. |
⚡ High Luminous Efficacy 110.28% relative brightness—no sacrifice in luminous efficacy for low-power applications, ensuring optimal performance. | |
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 packaging is LD-4155 suitable for? LD-4155 is designed for low-power packaging, suitable for straw hat type, piranha type DIP packaging, and small-size SMD packaging. | ❓ What is the difference from LD-4155L? LD-4155 has a 7.4μm particle size (low-power packaging), while LD-4155L has a 9.6μm particle size (high-power packaging). Color temperature also differs: LD-4155 is 4122K, LD-4155L is 7000K. |
❓ Can LD-4155 be blended with other phosphors? Yes. LD-4155 can be blended with red phosphor to improve CRI or achieve different color temperatures for various applications. | ❓ 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-4155 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. |
