Technical Information & Details for the MEAN WELL HLG-120H-15A Power Supply Rated Power: 120 W Output Voltage (DC): 15 V Rated Current: 8 A Input Voltage Range: 90 – 305 V AC / 127 – 431 V DC Efficiency (typ.): 92 % Ripple & Noise (max.): 150 mVp-p Voltage Adjustment Range: 13.5 – 17 V Current Adjustment Range: 4 – 8 A Operating Temp. (Case): −40 °C to +80 °C IP Rating: IP65 Typical Lifetime: > 62,000 hours Manufacturer Warranty: 7 Years Details about the MEAN WELL HLG-120H-15A The MEAN WELL HLG-120H-15A is a high-performance 120W LED driver engineered for industrial durability and flexible output management. As an "A-Type" model, it is specifically designed for on-site hardware calibration. It features two internal potentiometers located under protective rubber stoppers, allowing users to manually fine-tune the output voltage and calibrate the constant current limiting point to suit specific load requirements. Featuring a dual-mode constant voltage and constant current output, the HLG-120H-15A ensures exceptional performance across diverse LED configurations. Housed in a rugged IP65-rated metal enclosure, the unit provides effective protection against environmental ingress such as dust and water splashes. Its fanless design utilizes natural air convection for cooling, ensuring completely silent operation and a long operational lifespan exceeding 62,000 hours. The unit achieves 92% efficiency and includes built-in active Power Factor Correction (PFC) to maintain high power quality standards. It is equipped with comprehensive safety protections, including short circuit, overcurrent, overvoltage, and overtemperature mechanisms. Backed by a 7-year manufacturer warranty and carrying the "Type HL" rating for hazardous locations, the HLG-120H-15A is a premier choice for street lighting, parking lot illumination, and professional-grade industrial lighting systems.

Technical Specifications & Details for MEAN WELL MDR-20-24 Power Supply Output Power: 24 W Output Voltage: 24 V DC Output Current: 1 A Input Voltage Range: 85 – 264 V AC / 120 – 370 V DC, 47 – 63 Hz Efficiency: 84% Ripple & Noise: ≤ 150 mVp-p Inrush Current: max. 20 A @115 VAC / 40 A @230 VAC No-load Power Consumption: < 0.75 W Operating Temperature: −20 °C to +70 °C Cooling: Free air convection Protections: Short circuit, Overload (Constant current limiting), Over voltage Isolation Voltage: 3000 V AC I/P to O/P Dimensions (W x H x D): 22.5 mm x 90 mm x 100 mm Weight: approx. 170 g Safety & EMC Certificates: UL 508, TUV BS EN/EN62368-1, EAC, CB, BSMI, IS13252 LED Indicator: Power On LED indicator Manufacturer Warranty: 3 Years  Information on the MEAN WELL MDR-20-24 The MEAN WELL MDR-20-24 is a highly reliable 24W power supply designed for seamless DIN rail integration in space-constrained industrial environments. Its ultra-slim 22.5mm width allows for maximum component density on TS-35/7.5 or 15 rails, making it a preferred choice for modern control panels. A key technical advantage of this model is the built-in DC OK active signal, which provides real-time feedback on the output status to higher-level monitoring systems or PLCs. Engineered for superior energy performance, it achieves an efficiency of 84% and maintains a no-load power consumption of less than 0.75W, significantly lowering the total cost of ownership and thermal dissipation. The unit employs a constant current limiting protection strategy, ensuring it remains robust during startup surges or temporary overloads and recovers automatically once conditions stabilize. With its maintenance-free fanless design and a full suite of global safety approvals, the MDR-20-24 provides a stable 24V DC foundation for automation, telecommunications, and building management systems.