The MWS65 series operates from -20°C to 70°C (derating applies above 50°C) and will start up at -25°C. No forced air cooling is required. The unit profile is very low, just 1” high, including the underside components. Unit efficiency is high for a low power AC to DC power supply, up to 89% with a flat curve. Off-load power draw is less than 300mW, in line with Energy Star limits. The units come with a three year warranty and 60950-1 and 60601-1 certifications (both 2nd and 3rd edition).