Technical Information & Details for the MEAN WELL HLG-120H-15A Power Supply Rated Power: 120 W Output Voltage (DC): 15 V Rated Current: 8 A Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC Efficiency (typ.): 92 % Ripple & Noise (max.): 150 mVp-p Voltage Adjustment Range: 13.5 – 17 V Current Adjustment Range: 4 – 8 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-15A The MEAN WELL HLG-120H-15A is a high-performance 120W LED driver engineered for industrial durability and flexible output management. As an "A-Type" model, it is specifically designed for on-site hardware calibration. It features two internal potentiometers located under protective rubber stoppers, allowing users to manually fine-tune the output voltage and calibrate the constant current limiting point to suit specific load requirements. Featuring a dual-mode constant voltage and constant current output, the HLG-120H-15A ensures exceptional performance across diverse LED configurations. Housed in a rugged IP65-rated metal enclosure, the unit provides effective protection against environmental ingress such as dust and water splashes. Its fanless design utilizes natural air convection for cooling, ensuring completely silent operation and a long operational lifespan exceeding 62,000 hours. The unit achieves 92% efficiency and includes built-in active Power Factor Correction (PFC) to maintain high power quality standards. It is equipped with comprehensive safety protections, including short circuit, overcurrent, overvoltage, and overtemperature mechanisms. Backed by a 7-year manufacturer warranty and carrying the "Type HL" rating for hazardous locations, the HLG-120H-15A is a premier choice for street lighting, parking lot illumination, and professional-grade industrial lighting systems.