LED Lighting

LED Lighting - Color

Part Number	Description / PDF	Quantity
XTEARY-00-0000-000000M07 Cree	LED XTE 457.5NM ROY BL 525MW SMD	0
XPEBRO-L1-R250-00702 Cree	LED XLAMP XPE2 RED/ORN 613NM SMD	0
XMLCTW-A2-0000-00C3AAC03 Cree	LED XML RGBW SMD	0
MLEGRN-A1-0000-000103 Cree	LED XLAMP GREEN 530NM 35.2LM SMD	0
XPCGRN-L1-0000-00701 Cree	LED XLAMP XP-C GREEN SMD	0
XQEROY-00-0000-000000N01 Cree	XLAMP XQ-E LED ROYAL BLUE	0
XPERED-L1-0000-00802 Cree	LED XLAMP XPE RED 623NM 2SMD	0
XQEGRN-H2-0000-000000C03 Cree	LED XLAMP GREEN 520NM 1616 SMD	0
XREROY-L1-0000-00903 Cree	LED ROYAL BLUE 7X9MM SMD	0
XPEAMB-L1-0000-00703 Cree	LED XLAMP XPE AMBER 593NM 2SMD	0
XPEGRN-L1-0000-00903 Cree	LED GREEN 1000MA 3.45X3.45 SMD	0
XTEARY-00-0000-000000M06 Cree	LED XTE 465NM ROY BLUE 525MW SMD	0
XPEBAM-L1-0000-00601 Cree	LED XLAMP XPE2 AMBER 590NM 2SMD	0
XPERDO-L1-0000-00703 Cree	LED RED-ORANGE 700MA SMD	0
MLEGRN-A1-0000-000003 Cree	LED XLAMP GREEN 530NM 30.6LM SMD	0
XBDROY-00-0000-000000K08 Cree	LED XBD RYL BLUE 460NM 475MW SMD	0
XQEGRN-02-0000-000000B03 Cree	LED XLAMP XQ-E 535NM GREEN SMD	0
XREROY-L1-0000-00A02 Cree	LED ROYAL BLUE 7X9MM SMD	0
XPEFAR-L1-R250-00601 Cree	LED XLAMP XP-E FAR RED SMD	1
XMLCTW-A2-0000-00C3ACCA1 Cree	LED XML RGBW SMD	0

LED Lighting - Color

1. Overview

LED lighting in color applications refers to semiconductor optoelectronic devices that emit visible light through electroluminescence. Unlike monochromatic LEDs, color LED lighting systems offer tunable wavelength outputs, precise color rendering, and dynamic control capabilities. Their energy efficiency (up to 200 lm/W), long operational lifespan (50,000+ hours), and compact form factor have revolutionized modern illumination across architectural, automotive, medical, and consumer electronics sectors.

2. Major Types & Functional Classification

Type	Functional Characteristics	Application Examples
Single-color LEDs	Fixed wavelength emission (450-660nm range), high intensity	Indicator lights, traffic signals
RGB LEDs	Three-in-one chip with red/green/blue elements for 16.7M color combinations	Architectural accent lighting
Tunable White LEDs	Adjustable correlated color temperature (CCT 2200K-6500K)	Smart home lighting systems
Quantum Dot LEDs	Narrow spectral emission (<10nm FWHM), 110% NTSC coverage	High-end display backlighting
Addressable LED Strips	Individually controllable segments via DMX512/WS2812 protocols	Stage lighting, digital signage

3. Structure & Composition

Typical LED lighting systems consist of:

Epitaxial structure: GaN/InGaN on sapphire substrate with multiple quantum wells
Phosphor conversion layer (YAG:Ce for white LEDs) or quantum dot coatings
Metal core PCB (MCPCB) with thermal conductivity >1W/m K
Secondary optics: PMMA/PC lenses with beam angles 8 -120
Constant current driver with PFC >0.9 and dimming control (PWM/0-10V)
Smart interfaces: Zigbee/Wi-Fi/BLE modules for IoT integration

4. Key Technical Specifications

Parameter	Description	Importance
Color Temperature (CCT)	Measured in Kelvin (2200K-10000K)	Defines warm/cold light perception
Color Rendering Index (CRI)	Scale 0-100 (Ra>80 recommended)	Accuracy of object color reproduction
Luminous Efficacy	lm/W ratio (60-200 lm/W typical)	Energy efficiency metric
Color Stability	uv <0.005 over lifetime	Consistent color output maintenance
Spectral Power Distribution	Peak wavelength tolerance 2nm	Determines color purity
Dimming Range	0.1%-100% with 16-bit resolution	Lighting flexibility
Operating Lifetime	L70/B50 metrics at 50,000hrs	Total cost of ownership factor

5. Application Fields

Major industries utilizing color LED technology:

Architectural: Dynamic fa ade lighting (e.g., Burj Khalifa illumination system)
Medical: Surgical lighting with CRI>95 and color temperature 4000K
Automotive: Ambient lighting systems with 256-color programmability
Consumer: HDR display backlighting with local dimming zones
Industrial: Machine vision systems using specific wavelength LEDs
Horticulture: Grow lights with 660nm deep red and 450nm blue peaks

6. Leading Manufacturers & Products

Manufacturer	Representative Product	Key Features
Cree (now Wolfspeed)	XHP70B RGB LED	1500lm total output, IP68 rated
Philips Lighting	Hue White and Color Ambiance	16 million colors, Zigbee control
Osram Opto	OSTAR Projection RGB	2000:1 contrast ratio for laser projectors
Samsung LEDs	LH351D Tunable White	2700K-6500K adjustment range
Nichia Corp	Optisolis series	High CRI 98+ for museum lighting

7. Selection Recommendations

Key considerations for LED selection:

Color accuracy requirements (CRI vs. TM-30 metrics)
Thermal management compatibility (Tj max 125 C typical)
Control interface compatibility (DALI vs. DMX512)
Optical design constraints (TIR lens vs. diffuser requirements)
Color consistency (binned per ANSI C78.377 standards)
Compliance certifications (Energy Star, DLC, UL 8750)
Lifetime depreciation curve analysis (LM80 testing data)

8. Industry Development Trends

Emerging trends shaping color LED technology:

Micro-LED adoption for sub-50 m pixel sizes in AR/VR displays
Human-centric lighting (HCL) systems mimicking circadian rhythms
Integrated LiFi communication via visible light (IEEE 802.15.7)
Perovskite quantum dots achieving 190 lm/W efficacy
Thermal management innovations using graphene heat spreaders
AI-powered lighting systems with ambient light sensing
UV-C LEDs for disinfection applications (265-280nm range)