Technical Information & Details for MEAN WELL HLG-185H-48B Power Supply
- Output Power: 187.2 W
- Output Voltage: 48 V DC
- Output Current: 3.9 A
- Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC, 47 – 63 Hz
- Efficiency: 94%
- Dimming Function: 3-in-1 dimming (1–10V DC, 10V PWM signal, resistance)
- Ripple & Noise: ≤ 200 mVp-p
- Power Factor: PF ≥ 0.98 / 115 VAC, PF ≥ 0.95 / 230 VAC
- Operating Temperature: −40 °C to +90 °C (Case Temperature)
- Cooling: Fanless natural convection
- Protections: Short Circuit, Over Current, Over Voltage, Over Temperature
- IP Rating: IP67 (Fully dust-tight and waterproof)
- Isolation Voltage: 3750 V AC (Input to Output)
- Dimensions (L x W x H): 228 mm x 68 mm x 38.8 mm
- Weight: approx. 1150 g
- Safety & EMC Certificates: UL8750, EN61347-1, EN61347-2-13, IP67, EAC, CE
- Manufacturer Warranty: 7 Years
Information about the MEAN WELL HLG-185H-48B
The MEAN WELL HLG-185H-48B is a high-performance 185W AC/DC LED driver, meticulously engineered for industrial-grade longevity and intelligent lighting control. The standout feature of this "B-Type" model is its integrated 3-in-1 dimming interface, allowing the constant current output to be precisely adjusted via 1–10VDC, a 10V PWM signal, or external resistance. Built with a rugged metal housing and a full IP67 ingress protection rating, this driver is completely immune to dust and water immersion, making it the premier choice for harsh environment applications such as LED street lighting, high-bay lamps, and professional greenhouse lighting systems. It operates using a dual-mode constant voltage and constant current output, providing maximum flexibility for various LED strip or module configurations. Achieving a peak efficiency of 94%, the unit minimizes energy waste and thermal stress, enabling reliable fanless operation at case temperatures from -40 °C to +90 °C. Backed by an industry-leading 7-year manufacturer warranty and a typical life expectancy of over 62,000 hours, the HLG-185H-48B ensures significant reductions in maintenance costs and exceptional long-term performance for large-scale infrastructure projects.