Technical Information & Details for the MEAN WELL HLG-120H-24B Power Supply
- Rated Power: 120 W
- Output Voltage (DC): 24 V
- Rated Current: 5 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC
- Efficiency (typ.): 93 %
- Ripple & Noise (max.): 150 mVp-p
- Constant Current Region: 12 – 24 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-24B
The MEAN WELL HLG-120H-24B is a high-performance 120W LED driver engineered for smart lighting applications that require 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 the light intensity via a 1–10V DC signal, a 10V PWM signal, or external resistance, making it perfect for building automation systems.
Designed for mission-critical reliability, the HLG-120H-24B features a fully potted metal enclosure with an IP67 rating. This ensures the unit is completely sealed against dust and moisture, allowing it to function even after temporary immersion in water. This robust level of protection makes it the premier choice for high-exposure outdoor installations, hazardous industrial locations, and architectural accentuation.
Technically, 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 utilizes natural air convection for cooling, facilitating completely silent operation and a lifespan exceeding 62,000 hours. Backed by an industry-leading 7-year warranty, the HLG-120H-24B is a top-tier solution for dimmable street lighting, high-bay luminaires, and large-scale greenhouse projects.