Solnoi Electronics USB Charger 4.5 - 40V DC To 5V 2A DC-DC Step-down Converter with Voltmeter Voltmeter  (Digital)

USB Charger / Car Charger 4.5 ~ 40V DC To 5V 2A USB Charger DC-DC Step-down Converter with Voltmeter, USB charging Step-down power supply Module performance and highlights :DC-4-5-40V-To-font-b-5V-b-font-2A-USB-Charger-DC-DC-Step 1 . ultra wide voltage meter range : DC 4.5~40V 2.5V/2A output current capability ( to stabilize output when the input voltage is 4.5~40V 5.0 V) 3 . one key ( ” output enable ” button ) to switch USB output , one – click ( the ” low power ” button ) enter ultra low power consumption 4 . on-board voltage meter can be calibrated , never question of voltmeters are not accurate ! ! 5 . reverse connection protection , reverse connection does not burnUSB Charger : Car Charger 4.5 ~ 40V DC To 5V 2A USB Charger 6 . with overload , overtemperature protection 7 . USB power indicator 8 . the Terminal , easy access lines 9 . high efficiency and low ripple Module: Ultra-wide input voltage , and can be used for car / electric car / motorcycle , used to monitor the battery voltage , grasp the battery status may be used for a variety of voltage measurement purposes . 5.0V,2A output current capability , sufficient to meet a variety of USB devices , the voltage is very stable …USB Charger : Car Charger 4.5 ~ 40V DC To 5V 2A USB Charger 2 Note: this default D+ module d – shorted , and is compatible with most cell phones charging , and set aside a variety of mobile phones to identify resistance installation location , if you need to add identification resistor , connecting the D+ d – wire cutting , can be joined on their own .