Review on 💡 Valefod LM2596 DC to DC Voltage Regulator 3 Pack - Efficient Buck Converter with LED Display by Matt Hamilton

I bought these to power a couple of promotional LCD video players that I've opened up for Halloween decorations. The first failed to provide stable voltage by sending two words excellent. That's why I bought three. Learn more about what failed. Initially it turned on and output 5V DC. did the setting for 3.7vdc but then it dropped to 1.5vdc. I adjusted the voltage, but the maximum value was 2.5 VDC. any load renders the device unusable. By any load I mean LED and resistor. 2 out of 3 is not bad. I would still buy it again, just in a pack of three.