The V - 4 12Vin from American High Voltage is a DC to DC Converter with Input Voltage 12 V, Output Voltage 1 400 V, Output Current 1 250 mA, Output Power 100 W, Supply Voltage 10.8 to 15 V. Tags: Chassis Mount, Boost/Step Up. More details for V - 4 12Vin can be seen below.