... , mine, medical treatment and so forth, to act as time delay, time display and control on timing.>>Primary Technical Characteristics Mounting kindpanel ... % of the rating power supply voltagePower supply voltagealternative current 12V, 24V, 36V, 110V, 220V, 360V/50Hz, direct current ... 12V, 24V.Power consumption≤4.5VAOperating environmenttemperature -5°c~40°c ...