Technical Information & Details for the MEAN WELL HLG-120H-20A Power Supply
- Rated Power: 120 W
- Output Voltage (DC): 20 V
- Rated Current: 6 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC
- Efficiency (typ.): 93 %
- Ripple & Noise (max.): 150 mVp-p
- Voltage Adjustment Range: 17 – 22 V
- Current Adjustment Range: 3 – 6 A
- Operating Temp. (Case): −40 °C to +80 °C
- IP Rating: IP65
- Typical Lifetime: > 62,000 hours
- Manufacturer Warranty: 7 Years
Details about the MEAN WELL HLG-120H-20A
The MEAN WELL HLG-120H-20A is a high-grade 120W LED driver engineered for industrial durability and precise power management. As an "A-Type" model, it is specifically designed for on-site customization. It features two internal potentiometers accessible through the top of the rugged metal housing, allowing installers to manually fine-tune the output voltage from 17V to 22V and calibrate the current limit from 3A to 6A.
Operating in dual-mode constant voltage and constant current, the HLG-120H-20A ensures stable performance across various LED load configurations. Its IP65-rated aluminum enclosure provides robust protection against dust and moisture ingress, making it suitable for high-bay lighting, urban street lamps, and professional outdoor architectural installations. The fanless design enables completely silent operation and effective cooling through natural air convection.
With a peak efficiency of 93% and built-in active PFC, the driver minimizes energy waste and optimizes power quality. It includes comprehensive safety mechanisms, such as short circuit, overcurrent, overvoltage, and overtemperature protections. Backed by a 7-year manufacturer warranty and carrying the "Type HL" rating for hazardous locations, this driver is a top-tier choice for mission-critical infrastructure and large-scale industrial lighting projects.