Technical Information & Details for the MEAN WELL HLG-120H-30B Power Supply
- Rated Power: 120 W
- Output Voltage (DC): 30 V
- Rated Current: 4 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC
- Efficiency (typ.): 93 %
- Ripple & Noise (max.): 200 mVp-p
- Constant Current Region: 15 – 30 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
Information about the MEAN WELL HLG-120H-30B
The MEAN WELL HLG-120H-30B is a high-performance 120W LED driver engineered for smart lighting architectures requiring remote brightness control and extreme durability. As a "B-Type" model, it features a dedicated dimming wire for integrated 3-in-1 dimming. This allows users to regulate light intensity via a 1–10V DC signal, a 10V PWM signal, or external resistance.
Designed for mission-critical reliability, the HLG-120H-30B features a fully potted metal enclosure with an IP67 rating. This ensures the unit is completely sealed against dust and moisture, making it suitable for high-exposure outdoor installations and industrial wet locations. The driver utilizes a dual-mode constant voltage and constant current output, providing 93% efficiency and built-in active Power Factor Correction (PFC).
The fanless thermal design relies on natural air convection for cooling, facilitating completely silent operation and a lifespan exceeding 62,000 hours. Backed by an industry-leading 7-year warranty and carrying the "Type HL" rating for hazardous locations, the HLG-120H-30B is a top-tier solution for dimmable street lighting, high-bay industrial luminaires, and professional horticultural projects.