Technical Information & Details for MEAN WELL HLG-480H-48B Power Supply Output Power: 480 W Output Voltage: 48 V DC Output Current: 10 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 Inrush Current: 35 A @ 230 VAC (Cold Start) Power Factor: PF ≥ 0.98 @ 115 VAC / PF ≥ 0.97 @ 230 VAC Operating Temperature: -40 °C to +90 °C (Case temperature) Cooling: Fanless natural convection Protection Functions: Short circuit, Overload, Over voltage, Over temperature Ingress Protection: IP67 (B-Type) Withstand Voltage: 3750 V AC between Input and Output Dimensions (L x W x H): 262 mm x 125 mm x 43.8 mm Weight: approx. 2800 g Safety & EMC Certificates: UL8750, ENEC EN61347-1, PSE, CB, CE, EAC Dimming: 3-in-1 dimming (0-10VDC, 10V PWM signal, resistance) Manufacturer Warranty: 7 Years Information about the MEAN WELL HLG-480H-48B The MEAN WELL HLG-480H-48B is a premier 480W LED driver engineered for sophisticated lighting systems that require precise control and high-tier reliability. As a B-Type variant, this unit is defined by its versatile 3-in-1 dimming functionality, which supports 0-10VDC, 10V PWM signals, and resistance-based control, allowing for seamless integration into smart building and automation systems. Its IP67-rated metal enclosure provides ultimate protection against harsh environmental conditions, making it the perfect solution for high-power applications such as harbor installations, stadium floodlighting, and intensive greenhouse lighting where moisture and dust resistance are critical. A standout characteristic of the HLG-480H-48B is its unrivaled energy efficiency of up to 95.5%, facilitating a fanless design that operates entirely through free air convection. This silent cooling method significantly enhances the unit's longevity, contributing to a typical lifetime of more than 62,000 hours even in demanding thermal environments. Equipped with a dual-mode output (Constant Voltage + Constant Current) and backed by a prestigious 7-year manufacturer warranty, this power supply represents a high-stability investment for professional lighting designers looking for maximum performance and energy savings in heavy-duty industrial settings.