Technical Information & Details for the MEAN WELL HLG-120H-20B 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
- Constant Current Region: 10 – 20 V
- Operating Temp. (Case): −40 °C to +80 °C
- IP Rating: IP67 (fully dust-tight and waterproof)
- Dimming Technology: 3-in-1 dimming (1–10V DC, 10V PWM signal, or resistance)
- Manufacturer Warranty: 7 Years
Details about the MEAN WELL HLG-120H-20B
The MEAN WELL HLG-120H-20B is a high-performance 120W LED driver designed for sophisticated lighting architectures that demand smart control and extreme environmental resilience. As a "B-Type" model, it is distinguished by its built-in 3-in-1 dimming function, allowing seamless integration into automation systems. This feature enables users to adjust light intensity via a 1–10V DC signal, a 10V PWM signal, or external resistance.
Engineered for mission-critical reliability, the HLG-120H-20B features a fully potted metal enclosure with an IP67 rating. This ensures the unit is completely sealed against dust and remains protected even under temporary immersion in water. This level of protection makes it the premier choice for high-exposure outdoor installations, industrial wet locations, and architectural lighting in challenging climates.
Technically, the driver utilizes a dual-mode constant voltage and constant current output, ensuring stability across various LED configurations. With 93% efficiency and integrated active Power Factor Correction (PFC), it optimizes energy usage and minimizes thermal stress. The fanless design relies on natural air convection for cooling, facilitating completely silent operation and a lifespan exceeding 62,000 hours at case temperatures up to +80 °C.
The unit is equipped with comprehensive safety protections, including short circuit, overcurrent, overvoltage, and overtemperature mechanisms. Backed by an industry-leading 7-year warranty, the HLG-120H-20B is a top-tier power solution for dimmable street lighting, high-bay industrial luminaires, urban parking areas, and professional horticultural projects.