Universal AC input/ Full range Built-in Active PFC function Withstand 300Vac surge input for 5 sec. High efficiency up to 90%(type) Output protections: OLP/OVP/SCP/OPP Wide operating ambient temperature (-20°C∼70°C) All using 105°C long life electrolytic capacitors Free air convection for 150W and 200W with 20.5CFM forced air 100% full load burn-in test 5*3 compact size