LED Drivers

Part Number	Description / PDF	Quantity
PWM-40-48 MEAN WELL	LED DRIVER CV AC/DC 48V 840MA	0
GSC25E-500 MEAN WELL	LED DRVR CC AC/DC 26-52V 500MA	118
ELG-75-48 MEAN WELL	LED DRVR CC/CV AC/DC 48V 1.6A	0
HLG-120H-C500A MEAN WELL	LED DRVR CC AC/DC 150-300V 500MA	73
XLG-150-L-A MEAN WELL	150W LED POWER SUPPLY O/P +120~2	25
LPL-18-12 MEAN WELL	LED DRIVER CV AC/DC 12V 1.5A	5
CLG-150-30 MEAN WELL	LED DRVR CC/CV AC/DC 22.5-30V 5A	14
XLG-240-L-A MEAN WELL	240W LED POWER SUPPLY O/P +178~	9
HLG-185H-12 MEAN WELL	LED DRVR CC/CV AC/DC 6-12V 13A	7
LPF-60-24 MEAN WELL	LED DVR CC/CV ACDC 14.4-24V 2.5A	920
NPF-90-15 MEAN WELL	LED DRIVER CC/CV AC/DC 9-15V 6A	0
IDLV-65A-60 MEAN WELL	LED DRIVER CV AC/DC 60V 1.08A	0
HVG-150-42B MEAN WELL	LED DVR CCCV ACDC 23.1-42V 3.58A	68
HLP-80H-12 MEAN WELL	LED DRIVER CC AC/DC 7.2-12V 5A	0
HLG-60H-24B MEAN WELL	LED DVR CC/CV ACDC 14.4-24V 2.5A	84
HLG-150H-54AB MEAN WELL	O/P +54V2.8A	16
IDPC-45A-500 MEAN WELL	LED DRVR CC AC/DC 54-90V 500MA	15
APC-35-350 MEAN WELL	LED DRVR CC AC/DC 28-100V 350MA	24
NPF-120D-15 MEAN WELL	LED DRIVER CC AC/DC 9-15V 8A	0
PWM-90-24 MEAN WELL	LED DRIVER CV AC/DC 24V 3.75A	213

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