Review on ⚡️ Icstation Buck Boost Converter: Voltage Regulator Module with Over-Charge, Current, Voltage, and Short-Circuit Protection | DC 5.0V-30V to 0.5V-30V Step Up Down Supply by Tony Kingdom

I bought two. One for charging small batteries, the other as the main solar charge controller with volts/amps output to the PWM controller. The first worked for six hours until I hit the menu button to control the settings. The second just lit up, regardless of the input voltage. They are poorly made, responsible for all sensitive electronics and your home. The sale of this product in the United States of America should be banned! I would return it, but it would cost me more than it's worth.