120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power 120V 30V Regulator DC Power Preset Supply ON/OFF Supply Laboratory Bench Adjustable 60V KUAIQU Current Voltage Switching Power