Technical Information & Details for MEAN WELL HLG-320H-42AB Power Supply Rated Power: 321.3 W Output Voltage: 42 V DC Rated Current: 7.65 A Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz Efficiency: up to 94% Ripple & Noise: ≤ 250 mVp-p Control Interface: Internal Potentiometers + 3-in-1 Dimming Voltage Adj. Range: 38 – 46 V Current Adj. Range: 3.8 – 7.65 A Power Factor: PF ≥ 0.95 at 230 V AC Operating Temperature: −40 °C to +90 °C (case temperature) Cooling: fanless free air convection Protections: Short circuit, Over current, Over voltage, Over temperature IP Rating: IP65 rated Isolation Voltage: 3750 V AC between Input and Output Dimensions (L x W x H): 252 mm x 90 mm x 43.8 mm Weight: approx. 1880 g Safety Standards: UL8750, EN61347-1, EN61347-2-13, IP65, PSE, EAC Manufacturer Warranty: 7 Years Information about the MEAN WELL HLG-320H-42AB The MEAN WELL HLG-320H-42AB represents the ultimate "all-in-one" solution for high-power LED applications that demand both manual precision and automated control. As an AB-Type variant, it features dual-control capability: the output voltage and current can be manually calibrated using internal potentiometers for local hardware adjustment, while the integrated 3-in-1 dimming interface (0-10VDC, 10V PWM, or resistance) allows for real-time brightness modulation via external controllers. This hybrid functionality ensures the driver can adapt to nearly any high-power LED array architecture, providing seamless performance in both Constant Voltage (CV) and Constant Current (CC) modes. Encased in a ruggedized metal housing with an IP65 rating, it is engineered for extreme durability in harsh environments such as LED street lighting, stadium illumination, and professional greenhouse systems. With a superior efficiency of 94% and active PFC, the unit minimizes energy waste and internal heat, enabling reliable fanless operation at temperatures up to +90 °C. Supported by an industry-leading 7-year warranty, the HLG-320H-42AB is a premier choice for mission-critical power delivery.

Technical Information & Details for MEAN WELL HLG-480H-42AB Power Supply Rated Power: 478.8 W Output Voltage: 42 V DC Output Current: 11.4 A Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz Efficiency: up to 95.5% Ripple & Noise: ≤ 250 mVp-p AB-Type Feature: Internal Potentiometers AND 3-in-1 Dimming Voltage Adj. Range: 35.7 – 44.1 V (via internal pot) Current Adj. Range: 5.7 – 11.4 A (via internal pot & dimming) Dimming Function: 0-10V, 10V PWM, Resistance Operating Temperature: −40 °C to +90 °C (at case) Cooling: Fanless natural convection Protections: Short circuit, Overload, Over voltage, Over temperature IP Rating: IP67 Isolation Voltage: 3750 V AC (Input to Output) Dimensions (L x W x H): 262 mm x 125 mm x 43.8 mm Safety Standards: UL8750, ENEC EN61347-1, EAC, CB, CE Manufacturer Warranty: 7 Years Information about MEAN WELL HLG-480H-42AB The MEAN WELL HLG-480H-42AB represents the ultimate configuration in the HLG family, offering a unique "Dual-Control" feature set that combines manual and remote adjustments. This AB-Type model empowers lighting designers to pre-set voltage and current levels via internal potentiometers while simultaneously utilizing the 3-in-1 dimming interface (0-10V, PWM, or resistance) for real-time intensity management. This dual functionality is indispensable for high-end industrial projects, stadium floodlights, and horticultural LED arrays where precise hardware calibration must meet advanced automated control systems. Constructed within a heavy-duty IP67-rated metal enclosure, the HLG-480H-42AB is engineered to thrive in the most rigorous outdoor and industrial environments, resisting dust, water ingress, and vibration. Its extraordinary 95.5% efficiency rating facilitates a silent, fanless operation, ensuring that heat is dissipated naturally via free air convection even at elevated temperatures. Supported by an exceptional 7-year manufacturer warranty and a proven lifetime of over 62,000 hours, this driver is the definitive choice for mission-critical applications where maximum versatility, energy savings, and long-term operational stability are required.

Technical Information & Details for the MEAN WELL HLG-120H-42AB 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 Adjustability: Voltage (38–46V) and current (1.45–2.9A) via internal potentiometers Dimming Technology: 3-in-1 dimming (1–10V DC, 10V PWM signal, or resistance) 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-42AB The MEAN WELL HLG-120H-42AB is the premier configuration in the 120W series for 42V applications, offering a unique hybrid of manual and electronic control features. Designed for sophisticated lighting architectures, this "AB-Type" model provides installers with the ultimate toolset for both initial hardware calibration and ongoing dynamic operation. The core advantage of this unit is its comprehensive adjustment architecture. It features built-in potentiometers located under protective rubber seals, allowing for the manual fine-tuning of output voltage and current levels during setup. This is paired with an external 3-in-1 dimming control cable, supporting 1-10V DC, 10V PWM signals, and external resistance. This combination allows for a high degree of precision, enabling users to set a performance baseline and adjust light output as needed via building automation systems. Featuring a dual-mode constant voltage and constant current output, the HLG-120H-42AB ensures high stability across diverse LED configurations. The IP65-rated aluminum housing facilitates efficient thermal management and provides robust protection against environmental ingress. With 93% efficiency and active PFC, the driver meets stringent energy requirements while maintaining a typical lifespan of over 62,000 hours. Backed by a 7-year warranty, it is a top-tier choice for smart urban lighting and professional-grade industrial systems.