LED Lighting

LED Lighting - White

Part Number	Description / PDF	Quantity
LA WW40WP5 DComponents	WARMWHITE LED DIE,3000K,80000MLM	11208
LA UW40WP4 DComponents	ULTRAWHITE LED DIE,5500K,90000ML	154801
LA CW40WP6 DComponents	COLDWHITE LED DIE,5500K,115000ML	14048
LA WW40WP6 DComponents	WARMWHITE LED DIE,3000K,100000ML	26629
LA UW40WP3 DComponents	ULTRAWHITE LED DIE,5500K,70000ML	1524066
LA CW40WP5 DComponents	COLDWHITE LED DIE,5500K,100000ML	15572
LA WW40WP4 DComponents	WARMWHITE LED DIE,3000K,55000MLM	87089
LA CW40WP3 DComponents	COLDWHITE LED DIE,5500K,70000MLM	2264224
LA WW40WP3 DComponents	WARMWHITE LED DIE,3000K,50000MLM	1162246
LA WW53SP6 DComponents	WARMWHITE LED DIE,3500K,110000ML	0
LA CW28WP6 DComponents	COLDWHITE LED DIE,6000K,110000ML	7543
LA CW20WP3 DComponents	COLDWHITE LED DIE,5500K,25000MLM	2099398
LA CW53SP6 DComponents	COLDWHITE LED DIE,6000K,130000ML	0
LA WW20WP6 DComponents	WARMWHITE LED DIE,3000K,45000MLM	1344
LA WW80SP6 DComponents	WARMWHITE LED DIE,3500K,200000ML	0
LA CW60SP3 DComponents	COLDWHITE LED DIE,5500K,200000ML	50011
LA UW60SP3 DComponents	ULTRAWHITE LED DIE,5500K,200000M	627936
LA WW60SP3 DComponents	WARMWHITE LED DIE,3000K,160000ML	220473
LA CW20WP6 DComponents	COLDWHITE LED DIE,5500K,55000MLM	64628
LA CW80SP6 DComponents	COLDWHITE LED DIE,5500K,230000ML	982

LED Lighting - White

1. Overview

White Light-Emitting Diodes (LEDs) are semiconductor devices that convert electrical energy into visible white light. They represent a fundamental shift from traditional lighting technologies due to their energy efficiency, longevity, and controllability. Modern white LEDs primarily use blue-emitting chips coated with phosphor materials to produce broad-spectrum white light, enabling precise color tuning and dimming capabilities.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
Blue Chip + Yellow Phosphor	Cost-effective, CRI 70-90, correlated color temperature (CCT) 2700-6500K	General lighting, residential bulbs
RGB Tri-color	Tunable color output, high CRI (>90), complex driver requirements	Stage lighting, architectural accenting
UV Chip + RGB Phosphor	Enhanced color rendering, reduced blue light hazard	Museum lighting, medical diagnostics
Remote Phosphor	Uniform light distribution, improved thermal management	Commercial downlights, automotive headlamps

3. Structure & Components

Typical white LED construction includes:

Die: Gallium Nitride (GaN) on sapphire substrate emitting blue light (450nm)
Phosphor Layer: Cerium-doped YAG (Y₃Al₅O₁₂) converting blue to yellow wavelengths
Encapsulation: Silicon dioxide lens with secondary optical elements
Thermal Interface: Metal-core PCB (MCPCB) for heat dissipation
Driver Circuit: Constant current source with EMI filtering

4. Key Technical Parameters

Parameter	Typical Range	Importance
Luminous Flux	100-20,000 lm	Determines light output capability
Color Temperature	2700K-6500K	Affects ambiance and visual comfort
Color Rendering Index (CRI)	70-98	Measures color fidelity accuracy
Luminous Efficacy	100-200 lm/W	Energy conversion efficiency metric
Lifespan	25,000-100,000 hrs	Total cost of ownership factor
Forward Voltage	2.8-3.6 V	Driver design specification

5. Application Fields

Residential: Smart bulbs, under-cabinet lighting
Commercial: Retail accent lighting, office panel lights
Industrial: High-bay warehouse fixtures, machine vision systems
Transportation: Automotive headlights, aircraft cabin lighting
Healthcare: Surgical lighting, circadian rhythm regulation

6. Leading Manufacturers & Products

Manufacturer	Key Product Series	Technical Highlights
Signify (Philips)	Luxeon 3535L	180 lm/W efficacy, 90 CRI, automotive grade
OSRAM Opto	Ostar Lighting	Surface-mount package, 2000cd/m luminance
Cree (Wolfspeed)	XHP50.2	High-density emitter, 20A drive current capability
Seoul Semiconductor	WICOP2	Chip-level integration, 0.2W-100W scalability

7. Selection Recommendations

Key considerations:

Optical requirements: Match CRI and CCT to application needs
Thermal management: Select appropriate heatsink and package type
Electrical compatibility: Verify driver specifications and dimming protocols
Form factor: Consider footprint constraints (e.g., 2835, 5630 packages)
Regulatory compliance: Ensure ENERGY STAR, DLC, or UL certification

8. Industry Trends

Emerging developments include:

Micro-LED integration for displays and Li-Fi communication
Quantum dot phosphors expanding color gamut (NTSC >100%)
Smart lighting systems with IoT connectivity (Zigbee, Bluetooth Mesh)
Advanced thermal materials (graphene MCPCBs)
Regulatory shifts toward higher minimum efficacy standards (DOE 2023: 120 lm/W)