Review on 🔌 PEMENOL 15W DC-DC Adjustable USB Power Supply Module - Convert Voltage from 5V to 3.3V, 9V, 12V, 24V, 30V - Step Up/Down Module with CVCC Buck Boost and Shell by Joshua Johnson

This is a great adjustable power supply. I carry this USB device in my tool bag wherever I go. Now that I'm working on TTL circuits, alarm systems, computer systems, and my Raspberry Pi collection (too many), I have the power I need. I like the 0.5 to 30V range. I've used 0.5 to 12V with no problems and the output is clean. I haven't used the 30v option yet. The power supply is clean and once you install it, it consistently outputs the desired voltage. Due to the large number of connections, I can charge all my devices with it. I use this for all my Raspberry Pi projects that require external power. I can also use it to power circuit boards in field tests without the need for heavy, bulky power supplies. The only improvement I would make would be to include test leads, but I understand not everyone needs them. Then you need adjustable power and time everywhere. buy It Now!