Features universal input desktop. Efficiency to 85% @ full load. Convection cooling. En55022, B, Level b. Class 1 product. Cec compliant. Energy star v compliant., 10 maximum temperature of 50°C operating. Electrical specifications ac input 90 to 264 v input frequency 47, 63 hz input current 2. 3a max inrush current 60a max efficiency 85% output power 120 to 180 w line regulation, /, 3% load regulation, /, 5% over current protection yes over voltage protection yes Protection from short-circuit occurrences yes isolation voltage 4242 vdc i/p to o/p functioning temperature, -10°C c to 50 c de, Rate from 40 c @ 100% to 50 c @ 75% load storage ranging from 20 degrees to, 85 c relative humidity 20% to 90% rh cooling convection model number voltage max. Minimum weight threshold wattage zvc120np12d, 12 v 10. 00 a 0. 0 a 120 w zvc150np12d, 12 v 12. 50 a 0. 0 a 150 w zvc120np15d, 15 v 8. 00 a 0. 0 a 120 w zvc150np15d, 15 v 10. 00 a 0. 0 a 150 w zvc150np19d, 19 v 7. 89 a 0. 0 a 150 w zvc150np24d, 24 v 6. 25 a 0. 0 a 150 w zvc180np24d, 24 v 7. 5 a 0. 0 a 180 w zvc150np36d, 36 v 4. 16 a 0. 0 a 150 w zvc180np36d, 36 v 5. 0 a 0. 0 a 180 w zvc150np48d, 48 v 3. 125 a 0. 0 a 150 w zvc180np48d, 48 v 3. 75 a 0. 0 a 180 w