LED Drivers

Part Number	Description / PDF	Quantity
ELG-75-12DA MEAN WELL	LED DRIVERS POWER SUPPLIES 60W 1	0
HBGC-300-L-AB MEAN WELL	300W CONSTANT POWER MODE LED DRI	7
HVG-240-48A MEAN WELL	LED DVR CC/CV ACDC 44.8-51.2V 5A	538
HVGC-150-500B MEAN WELL	LED DRVR CC AC/DC 30-300V 500MA	0
HVG-65-54A MEAN WELL	LED DVR CC/CV AC/DC 49-58V 1.21A	3
HVG-150-48B MEAN WELL	LED DVR CCCV ACDC 26.4-48V 3.13A	185
IDLV-25A-60 MEAN WELL	I/P:90-295VAC O/P:+60V 0.42A	0
ELG-75-C350B MEAN WELL	LED DRVR CC AC/DC 107-214V 350MA	9
LPF-90D-48 MEAN WELL	LED DRVR CC AC/DC 28.8-48V 1.88A	0
ELG-100-C1400DA MEAN WELL	LED POWER SUPPLIES 1400MA 35-72V	0
PWM-90-24DA MEAN WELL	O/P 24V/3.75A	8
ELG-200-54B MEAN WELL	LED DRVR CC/CV AC/DC 54V 3.72A	3
HLG-320H-C1050A MEAN WELL	LED DRVR CC AC/DC 152-305V 1.05A	22
HLG-120H-54 MEAN WELL	LED DRVR CC/CV AC/DC 27-54V 2.3A	4
NLDD-350HW MEAN WELL	DC-DC CONSTANT CURRENT STEP-DOWN	10
APV-25-12 MEAN WELL	LED DRIVER CV AC/DC 12V 2.1A	104
LPV-100-15 MEAN WELL	LED DRIVER CV AC/DC 15V 6.7A	0
ELG-75-C350DA MEAN WELL	LED DRIVERS POWER SUPPLIES 350MA	12
ELG-75-C1050A MEAN WELL	LED DRVR CC AC/DC 35-71V 1.05A	71
NPF-120-24 MEAN WELL	LED DRVR CC/CV AC/DC 14.4-24V 5A	3

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