Applicable scene:It can be used to evaluate system power consumption, overcurrent and overload protection, mobile phone and computer repair. It is easy to judge the system operating status based on the operating current. Constant current and constant voltage charging of various types of batteries.<br><br>parameter: Input voltage range 5~35v The output voltage range is 1.3~30v, not exceeding the input voltage, without boost. Output maximum current 5A Two optional output voltage ranges: 12v, 30v Two-color voltage and current meter. Different batches may result in different product appearances, printed text, and colors, which do not affect usage. Colour:White Material:plastic<br><br>Package Contents: 1 x Voltage Regulator KIT<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.