DC To DC 2A USB Charger 4.5-40V To 5V Step-down Buck Converter Voltmeter Module

The DC-DC Step-Down 9A XL4016 voltage converter has the function of delivering a constant output voltage lower than the input voltage against variations in the input or load voltage. It supports output currents of up to 9A, input voltage between 8V to 40V and output voltage between 1.25V to 36V. The output voltage is selected by a multiturn potentiometer.

The 300W 20A DC-DC Step-down Adjustable Constant Current Module can be used to get adjustable output voltage ranges from 1.2V to 36V. The module provides a wide range of current output up to 20 A. With the heat sink mounted it can easily manage to run high power applications continuously (provided that for continuous high power output you need to use a cooling fan on the heat sink).

This 4 Port USB buck fast-charging module integrates the common 5V charging recognition function, which is compatible with 99% of the mobile phones on the market. Compared with products without a charging recognition function, this module can save a lot of charging time by triggering the peak current via fast charging protocol. It features 6~32V input and 3~12V output (default 5V). The voltage can be changed through a fast-charging decoy. Multiple fast-charging protocols are supported.