The ZMS Series will operate across a wide input voltage range of 85 to 264VAC, 47-63Hz, and these units have a power factor correction meeting EN/IEC 61000-3-2 standards. There is low off-load power draw of less than 0.5W at 230VAC input, which is desirable for “green” systems. For full load 100W forced air operation, a minimum of 0.37 meters per second (m/S) airflow is required at 50°C ambient temperature and 230VAC input. For 100VAC input, minimum 0.6 m/S airflow is required. Units provide full power up to 50°C, and derate to 50% power at 70°C.