100% Brand new and High quality   Output Voltage: ±12V, Dual Voltage   Input Voltage: DC 15~24V, positive and negative dual voltage                           AC 12~16V, positive and negative dual voltage   Notice:   Only when the input is positive and negative dual voltage, the output for dual voltage.     Packing List:   1pcs x LM7812 + LM7912 ±12V Dual Voltage Power Supply Module