Feature:1. Work Mode 1: Input positive voltage and output positive and negative voltage. Positive and negative voltage should be used at the same time, otherwise negative pressure will not output.2. Work Mode 2: Input positive voltage, output positive voltage, as a common buck boost converter.3. PCB Board: The PCB board makes the module strong and durable, ensuring a better user experience and a long life span.4. Wide Application: This power module is mainly used for car power supply, instrument power supply, LCD backlight power supply, etc.5. Easy to Install: Comes with a compact size and a light weight as well, the easy installation can be quickly completed.Specification:Item Type: Dual Output Power ModuleMaterial: PCBInput DC: 3.6-30VOutput DC 3-30V adjustableMaximum Output Power: 20W (output power is different under different conditions)Maximum Conversion Efficiency: 68 to 89%Static Working Current: 2.5mA.Package List:1 xDual Output Power Module