LED Lighting - COBs, Engines, Modules, Strips

Part Number	Description / PDF	Quantity
L2C2-27901208E1500 Philips (LUMILEDS)	LED COB 1208 2700K WW 90CRI SMD	81
L2M0-4070004MC2200 Philips (LUMILEDS)	LED XR-M 4000K 4-UP SQUARE	13
L2C2-50801205E1300 Philips (LUMILEDS)	LED COB 5000K COOL WH 80CRI SMD	95
L2C1-4080120206A00 Philips (LUMILEDS)	LED COB 4000K 80CRI WARM WHITE	90
L2C2-50701204E1300 Philips (LUMILEDS)	LED COB 5000K COOL WH 70CRI SMD	0
L2C2-40701202E0900 Philips (LUMILEDS)	LED COB 4000K NEU WHT 70CRI SMD	0
L2C5-SPP11825G3200 Philips (LUMILEDS)	LUXEON SUNPLUS COB 1825	41
L2C2-27801202E0900 Philips (LUMILEDS)	LED COB 1202 2700K WW 80CRI SMD	94
L2C2-22901205E1300 Philips (LUMILEDS)	LED COB 1205 2200K WW 90CRI SMD	79
L2C5-30801204E1300 Philips (LUMILEDS)	LED COB CORE RANGE GEN3 WW RECT	0
L2C2-27901211E1900 Philips (LUMILEDS)	LED COB 1211 2700K WW 90CRI SMD	0
L2C5-50801204E1300 Philips (LUMILEDS)	LED COB CORE RANGE GEN3 CW RECT	0
L218-4090024C30000 Philips (LUMILEDS)	24UP 280MMX20MM	938
L2C5-SPR11825G3200 Philips (LUMILEDS)	LUXEON SUNPLUS COB 1825, ROSE	36
L2C5-30901202E09C0 Philips (LUMILEDS)	LED COB LUXEON WHITE 3000K SQ	0
L235-4080AMLF5WAD0 Philips (LUMILEDS)	LED LUXEON MATRIX 4000K	420
L2C5-BD001208E1500 Philips (LUMILEDS)	LED COB 2700K WHITE RECTANGLE	90
L2C5-40801203E0900 Philips (LUMILEDS)	LED COB CORE RANGE GEN3 NW RECT	566
L235-3080AHLCBBAC0 Philips (LUMILEDS)	LED LUXEON MATRIX 3000K	0
L2C2-40801203E0900 Philips (LUMILEDS)	LED COB 4000K NEU WHT 80CRI SMD	88

LED Lighting - COBs, Engines, Modules, Strips

1. Overview

LED lighting technologies, including Chip-on-Board (COB), LED Engines, Modules, and Strips, represent advanced solid-state lighting solutions. These components integrate semiconductor diodes to convert electrical energy into light, offering superior energy efficiency, longevity, and design flexibility compared to traditional lighting. Their importance spans industries such as architecture, automotive, consumer electronics, and industrial automation, driven by demands for sustainable and smart lighting systems.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
COBs	High-density LED arrays mounted directly on substrates, providing uniform light distribution and simplified thermal management.	Commercial downlights, high-bay warehouse lighting, film/photography lighting.
Engines	Pre-assembled units combining LEDs, drivers, and optics for plug-and-play integration.	Smart home lighting systems, retrofit lamps, horticultural grow lights.
Modules	Standardized units with LED arrays and integrated circuits for modular system design.	Office panel lighting, tunnel illumination, outdoor streetlights.
Strips	Flexible PCB-based linear arrays for customizable length and color control.	Architectural accent lighting, vehicle underglow, signage backlighting.

3. Structure and Components

Typical structures include:

COBs: Ceramic/aluminum substrate + multiple LED chips + phosphor coating + silicone encapsulation.
Engines: LED chip(s) + constant-current driver IC + primary optics + thermal interface material.
Modules: PCB board + SMD LEDs + secondary optics + connector terminals.
Strips: Flexible FPCB + RGB/W LED diodes + current-limiting resistors + adhesive backing.

All variants utilize semiconductor materials like GaN-on-SiC for blue/white emission or AlInGaP for red/yellow wavelengths.

4. Key Technical Specifications

Parameter	Description	Importance
Luminous Flux (lm)	Measure of total visible light output.	Determines brightness suitability for space.
Color Rendering Index (CRI)	Ability to accurately render object colors (0-100 scale).	Critical for retail, healthcare, and photography.
Correlated Color Temperature (CCT)	Light appearance from warm (2700K) to cool (6500K).	Affects ambiance and circadian rhythm regulation.
Lifespan (L70)	Operating hours until 70% lumen maintenance.	Reduces long-term maintenance costs.
Thermal Resistance ( C/W)	Efficiency of heat dissipation.	Impacts reliability and maximum drive current.

5. Application Fields

Architecture: Office lighting (Modules), hotel accenting (Strips), museum displays (COBs)
Automotive: Headlights (COBs), interior mood lighting (Strips), dashboard indicators (Modules)
Consumer Electronics: Smart bulb replacements (Engines), gaming PC lighting (Strips)
Industrial: Machine vision systems (COBs), warehouse safety lighting (Modules)

6. Leading Manufacturers

Manufacturer	Representative Product	Key Features
Cree (now Wolfspeed)	XLamp COB Arrays	3000K-5700K CCT range, 80 CRI, 1500mA max current
Osram	OSTAR LED Engines	Integrated driver, DALI compatibility, automotive-grade reliability
Philips Lighting	CorePro Modules	IEC 62031 compliant, 50,000-hour lifespan
Samsung LED	LPD8 Strips	Addressable RGB control, IP65 rating, 24V operation

7. Selection Recommendations

Key considerations:

Match L70 lifespan to maintenance schedules (e.g., 50,000+ hours for hard-to-reach installations)
Select CRI 90 for critical color applications vs. CRI 80 for general lighting
Verify IP rating compatibility (IP20 for indoor vs. IP67 for outdoor Strips)
Evaluate thermal management needs - COBs require heatsinks, Strips need ventilation
Check dimming compatibility (PWM vs. constant current reduction)

Case Study: Retail store lighting selected 4000K COBs with 95 CRI for product displays, achieving 40% energy savings over halogen systems while improving color accuracy.

8. Industry Trends

Emerging developments include:

Micro-LED integration for sub-100 m pixel densities in displays
HDR lighting systems using tunable white Modules
LiFi-enabled Engines for data transmission through light
UV-C disinfection modules for healthcare applications
Recyclable phosphor materials to meet EU RoHS standards

Market growth is projected at 12.3% CAGR (2023-2030), driven by smart city initiatives and automotive LED adoption.