USB and any 6-32v dc power can be converted to the power supply for outdoor equipment, stable output at 13.8v2a, adapt to existing outdoor equipment such as: recorder, mixer, wireless microphone and other .

When the outdoor power supply fails, powerbank can be converted by UD138  to provide emergency power for the outdoor equipment.

 almost all dc batteries can become a power source via ud138  converter

This device can also be used as a voltage regulator out put always stays at 13.8V.

specifications：

INPUT：USB：5V  9V 12V 15V 20V （2-5A）

            DC： 6-32V（MAX35V）

OUTPUT：13.8 2A(MAX 3A)

Output plug ：HRS4，DC。Lock DC XLR4

Dimensions：70*25*25(no include cable ）

Wt=100g/3.6oz

conversion conditions of the powerbank

1. a PD(Power Delivery) powerbank

2. the cable that with PD(Power Delivery)

If the above conditions cannot be met,  UD138 can convert the ordinary USB power supply into the scene supply voltage, and the powerbank cannot provide enough power out, it can only provide the use of low-power devices, such as wireless microphone receiver,some low-power mixer.