AZDelivery HW 140 DC Buck Boost Power Converter Automatic Step Up/Down Voltage Volt and Ampere Meter Display, compatible with Arduino including E Book! (Pack of 5)

✅ SEVERAL APPLICATIONS: The power supply can be used for power supply, as a voltage limiter, as a charger, as a high-power LED constant current driver module or for boosting and reducing voltage with overcurrent protection. It is not necessary to add an anti-backflow diode when used as a charger as the output is protected by the diode. ✅ SAFE: The module is protected by a reverse polarity protection on the input, an overload protection and an anti-backflow diode on the output. ✅ LCD DISPLAY: Equipped with an LCD that can display input and output voltage, output current and output power. Voltage resolution is 0.05V and current resolution is 0.005A ✅ PRECISE POWER ADJUSTMENT: The trimmers provide precise voltage and current adjustment. ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.