The following devices are compatible with DC and AC:

Direct current: The output is 220V direct current, this output is limited to AC and DC electric equipment use. Such as: hand drill, Angle grinder, pick, electric hammer, light bulb, iodine tungsten lamp, pure resistive load

Ac inverter: The output meets the mains standards. It is suitable for 220v mains load devices. Such as: TV, computer, fan, air conditioner, refrigerator, range hood, washing machine and so on.

When the equipment applicable to the mains standard and some DC appliances containing rectifiers are connected to DC power, the switch is easy to be damaged. And suitable for DC electric equipment some support AC input, also can be suitable for AC auxiliary power.

So the choice of auxiliary power supply is mainly to see what type of auxiliary power needs to take tools, relatively speaking, the range of AC will be more wide, and DC is more suitable for some professional tools, energy loss is smaller, oil consumption will be lower.