LED Lighting - Color

Image Part Number Description / PDF Quantity Rfq
GM5YJ01210A

GM5YJ01210A

Sharp Microelectronics

LED ORANGE CLEAR 6050 SMD

0

GM5YV01210A

GM5YV01210A

Sharp Microelectronics

LED AMBER CLEAR 6050 SMD

0

GM5YS01210A

GM5YS01210A

Sharp Microelectronics

LED SUNSET ORG CLEAR 6050 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

TypeFunctional CharacteristicsApplication Examples
Single-color LEDsFixed wavelength emission (450-660nm range), high intensityIndicator lights, traffic signals
RGB LEDsThree-in-one chip with red/green/blue elements for 16.7M color combinationsArchitectural accent lighting
Tunable White LEDsAdjustable correlated color temperature (CCT 2200K-6500K)Smart home lighting systems
Quantum Dot LEDsNarrow spectral emission (<10nm FWHM), 110% NTSC coverageHigh-end display backlighting
Addressable LED StripsIndividually controllable segments via DMX512/WS2812 protocolsStage 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

ParameterDescriptionImportance
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 Efficacylm/W ratio (60-200 lm/W typical)Energy efficiency metric
Color Stability uv <0.005 over lifetimeConsistent color output maintenance
Spectral Power DistributionPeak wavelength tolerance 2nmDetermines color purity
Dimming Range0.1%-100% with 16-bit resolutionLighting flexibility
Operating LifetimeL70/B50 metrics at 50,000hrsTotal 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

ManufacturerRepresentative ProductKey Features
Cree (now Wolfspeed)XHP70B RGB LED1500lm total output, IP68 rated
Philips LightingHue White and Color Ambiance16 million colors, Zigbee control
Osram OptoOSTAR Projection RGB2000:1 contrast ratio for laser projectors
Samsung LEDsLH351D Tunable White2700K-6500K adjustment range
Nichia CorpOptisolis seriesHigh 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)

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