LED Drivers

Part Number	Description / PDF	Quantity
HLG-80H-54 MEAN WELL	LED DVR CC/CV ACDC 32.4-54V 1.5A	0
ELG-100-C500A MEAN WELL	LED DRVR CC AC/DC 100-200V 500MA	0
HLG-120H-24A MEAN WELL	LED DRVR CC/CV AC/DC 22-27V 5A	37
HLG-100H-54B MEAN WELL	LED DVR CC/CV AC/DC 27-54V 1.77A	95
ELG-240-C1050 MEAN WELL	LED DRVR CC AC/DC 114-228V 1.05A	27
LPH-18-24 MEAN WELL	LED DRIVER CV AC/DC 24V 750MA	30
HLN-40H-24B MEAN WELL	LED DRVR CC/CV AC/DC 24V 1.67A	0
HLG-120H-C1400AB MEAN WELL	I/P 90~305VAC O/P +54~108V1400MA	8
HLG-60H-30A MEAN WELL	LED DRVR CC/CV AC/DC 27-33V 2A	24
HVG-240-36B MEAN WELL	LED DRVR CC/CV AC/DC 18-36V 6.7A	67
XLG-100-24-A MEAN WELL	100W CONSTANT POWER MODE LED DRI	98
HLG-60H-30B MEAN WELL	LED DRVR CC/CV AC/DC 18-30V 2A	22
HLG-185H-54 MEAN WELL	LED DVR CC/CV AC/DC 27-54V 3.45A	0
PCD-25-1400B MEAN WELL	LED DRIVER CC AC/DC 12-18V 1.4A	143
LPF-40-54 MEAN WELL	LED DVR CCCV ACDC 32.4-54V 760MA	0
PWM-60-24DA MEAN WELL	O/P +24V2.5A	0
HLG-320H-12 MEAN WELL	LED DRVR CC/CV AC/DC 12V 22A	35
NPF-120D-36 MEAN WELL	LED DRVR CC AC/DC 21.6-36V 3.4A	0
LDH-45B-350W MEAN WELL	LED DRVR CC BOOST 21-126V 350MA	148
APC-25-700 MEAN WELL	LED DRVR CC AC/DC 11-36V 700MA	144

LED Drivers

1. Overview

LED drivers are electronic devices that regulate power to LED light sources. They convert AC mains voltage to DC current/voltage required by LEDs, ensuring stable light output and longevity. Modern lighting systems rely on LED drivers for energy efficiency (up to 95% efficiency), thermal management, and dimming control in applications ranging from consumer electronics to industrial lighting.

2. Main Types & Functional Classification

Type	Function Features	Application Examples
Constant Current (CC)	Provides fixed output current (e.g., 350mA/700mA), adjustable voltage range	High-power LED streetlights, architectural lighting
Constant Voltage (CV)	Maintains fixed output voltage (e.g., 12V/24V DC), variable current	LED strips, downlights, backlighting systems
Dimmable Drivers	Supports 0-10V/PWM/digital dimming protocols	Smart home lighting, theater stage lighting
Offline Drivers	Direct AC mains input without external transformer	Industrial LED floodlights, retrofit bulbs

3. Structure & Components

Typical construction includes: - Die-cast aluminum housing with IP65+ protection - Input EMI filter and bridge rectifier - Power factor correction (PFC) circuit - Isolated flyback/forward converter topology - Output current sensing resistor network - Thermal shutdown and overvoltage protection (OVP) circuits - Optional DALI/DMX communication interfaces

4. Key Technical Specifications

Parameter	Typical Range	Significance
Input Voltage	90-305V AC / 12-48V DC	Determines global compatibility
Output Current	100mA-2.5A	Matches LED string requirements
Efficiency	85-96%	Impacts energy consumption
Power Factor	0.85-0.99	Reduces grid reactive power
Operating Temp	-40 C to +85 C	Environmental reliability

5. Application Fields

Architectural Lighting: Bridge/tower accent lighting
Industrial: High-bay warehouse lighting systems
Automotive: Adaptive driving beam (ADB) headlights
Smart Cities: IoT-enabled streetlight networks
Medical: Surgical operating room lighting

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
Philips Xitanium	XF2G121	105W, 0-10V dimming, 5-year warranty
Osram OT	OTi DALI	DALI-2 certified, 16A output
Mean Well	HBL-40A	40W constant current, IP67 rating
TI LM	LM3445	Triac dimmable, 150W offline driver

7. Selection Guidelines

Match output current/voltage to LED specifications
Verify dimming compatibility (e.g., phase-cut vs. 0-10V)
Check environmental ratings (IP, temperature)
Confirm safety certifications (UL, CE, DLC)
Calculate system lifetime vs. driver MTBF

8. Industry Trends

Key developments include: - Integration with wireless protocols (Bluetooth Mesh, Zigbee) - 80Plus Titanium efficiency standards adoption - GaN/SiC semiconductor implementation - Predictive maintenance capabilities via IoT connectivity - EU Ecodesign Lot 20 compliance requirements