Technical Information & Details for the MEAN WELL HLG-120H-42A Power Supply
- Rated Power: 121.8 W
- Output Voltage (DC): 42 V
- Rated Current: 2.9 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC
- Efficiency (typ.): 93 %
- Ripple & Noise (max.): 200 mVp-p
- Voltage Adjustment Range: 38 – 46 V
- Current Adjustment Range: 1.45 – 2.9 A
- Operating Temp. (Case): −40 °C to +80 °C
- IP Rating: IP65
- Typical Lifetime: > 62,000 hours
- Manufacturer Warranty: 7 Years
Information about the MEAN WELL HLG-120H-42A
The MEAN WELL HLG-120H-42A is a professional-grade 120W LED driver engineered for industrial durability and precise power delivery. As an "A-Type" model, it is specifically designed for on-site hardware calibration. It features two internal potentiometers located under protective rubber stoppers on the rugged metal enclosure, allowing installers to manually fine-tune the output voltage from 38V to 46V and calibrate the current limit from 1.45A to 2.9A.
Operating in dual-mode constant voltage and constant current, the HLG-120H-42A ensures stable performance across various LED load configurations. Its IP65-rated aluminum housing provides robust protection against environmental ingress like dust and moisture. The fanless thermal design utilizes natural air convection for cooling, ensuring completely silent operation and a long operational lifespan exceeding 62,000 hours.
With a peak efficiency of 93% and built-in active PFC, the driver optimizes energy usage and minimizes thermal stress. It includes comprehensive safety mechanisms, such as short circuit, overvoltage, and overtemperature protections. Backed by a 7-year manufacturer warranty and carrying the "Type HL" rating for hazardous locations, this driver is a premier choice for high-bay lighting and industrial-scale lighting projects.
