Review on 🔌 PEMENOL 60W 6A Adjustable Buck-Boost Voltage Regulator with Cooling Fan: DC to DC Power Supply Module with LCD Display and Solar Charging Support by Stephen Vasquez

This buck-boost (boost or buck) regulator works well. I am very happy with it. For testing I chose a 12 volt FM radio set to 5 watts of radio frequency per transmission. The first test I ran was a simulated car alternator outputting excessive voltage, I used 15.1 volts. The regulator automatically went into buck mode and lowered the voltage to the 13.0 volts I set. I set the transmitter to 5 watts RF and the regulator provided 12.9V at 3.6A. It worked great. It worked great in buck mode, but what really worries me is how the radio will work when the batteries are low, which can happen during an emergency, for example. To simulate a dead deep cycle battery I set the power supply to 7V. Again I want a 12V 5W HF ham radio transceiver to transmit. The regulator provided 12.96V when receiving a radio station and 12.9V at 3.2A when transmitting. It is great! Clean signal report And these numbers combined are great results, everything I wanted. This means that in an emergency when my batteries are low, say below 12V, I have the option to transmit a little longer.