1500W-T: AC 110V Switching Power Supply 1500w with Current Voltage Adjustable. 1500W-L: 100% Brand New,Switch power supply, convert AC 110V/220V. Dual input voltage,there is a switch choose the proper voltage before use. 1500W-PFC: Switching Power Supply 1500w With PFC,Constant Pressure Constant Current,Input Voltage:AC 110-240V(Wide Voltage Automatic Adaptation, No Switching) 1500W-S: AC-DC Converter Digital Display Current Voltage Adjustable Switch Regulated Power Supply .