NS-1230D30 Amp Digital Switching Power SupplyUser ManualElectrical specificationsModel NS-1230DInput Voltage 100~120V AC Fixed(or 200~240V AC fixed)Input Frequency 47Hz ~ 63HzPolarity Grounded NegativeOutput Voltage DC 5V~16V AdjustableContinuous (13.8V) 25ASurge(13,8V) 30ARipple & Noise <100mVEfficiency 75%Dimension(L*W*H mm) 154 x127x63 (6”x5”x2.5”)Net Weight 1.35 kg (3.4 lB)Note: Specifications may change without prior noticeUser informationThe NS-1230D power supply enable you to run almost any electronic product.Check the main supply voltageBefore you plug in and turn on the power supply for the first time, please check the mainsupply voltage.The voltage rating of the power supply is printed on a label on the cover of the unit. Verifythat it corresponds with your local main supply voltage (that is factory fixed at 110VAC).Turning the power supply onTurn the power supply on by pressing the power switch to the ’ON’ Position.Turning the power supply offBefore you turn the power supply off, turn the radio off as described in the userdocumentation for the radio.Turn the power supply off by pressing the power switch to the ’OFF’ PositionCoolingThe NS-1230D power supply is cooled by convection and forced air cooling. That is normalairflow around the power supply in combination with a temperature controlled fan to improvecooling at higher levels of use. The fan is always activated and the speed is controlled by asensor. When the temperature rises, the fan speed increases.