LED Drivers

Part Number	Description / PDF	Quantity
ELG-100-C700D2 MEAN WELL	LED POWER SUPPLIES 700MA 71-143V	32
HBG-160-48 MEAN WELL	LED DVR CC/CV ACDC 28.8-48V 3.3A	28
PLC-100-15 MEAN WELL	LED DRIVER CC/CV AC/DC 15V 5A	8
LPF-40D-36 MEAN WELL	LED DRVR CC AC/DC 21.6-36V 1.12A	59
NPF-120D-24 MEAN WELL	LED DRIVER CC AC/DC 14.4-24V 5A	14
LPFH-60D-42 MEAN WELL	LED DRVR CC AC/DC 25.2-42V 1.43A	0
IDPC-25-1050 MEAN WELL	LED DRVR CC AC/DC 16.8-24V 1.05A	18
HVGC-650-U-AB MEAN WELL	LED DRVR CP AC/DC 70V 11.2A	59
LPFH-60D-36 MEAN WELL	LED DRVR CC AC/DC 21.6-36V 1.67A	0
ELG-100-24A MEAN WELL	LED DRVR CC/CV AC/DC 12-24V 4A	11
HLG-40H-12 MEAN WELL	LED DVR CC/CV ACDC 7.2-12V 3.33A	1
NPF-60-48 MEAN WELL	LED DVR CCCV ACDC 28.8-48V 1.25A	37
IDLC-45A-350 MEAN WELL	LED DRVR CC AC/DC 57-95V 350MA	0
HLG-240H-15A MEAN WELL	LED DRVR CC/CV AC/DC 14-16V 15A	54
HLG-320H-24 MEAN WELL	LED DVR CC/CV ACDC 24V 13.34A	256
XLG-150-12-A MEAN WELL	150W LED POWER SUPPLY O/P 12V/12	76
LPC-150-350 MEAN WELL	LED DRVR CC AC/DC 215-430V 350MA	5
PLN-60-48 MEAN WELL	LED DRVR CC AC/DC 33.6-48V 1.3A	50
HLG-120H-24 MEAN WELL	LED DRVR CC/CV AC/DC 12-24V 5A	43
LPF-16-20 MEAN WELL	LED DVR CC/CV AC/DC 11-20V 800MA	12

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