eBoot 12 Pack Mini MP1584EN DC-DC Buck Converter Adjustable Power Step Down Module 24V to 12V 9V 5V 3V (12 Pack)

hi welcome to another product test review by Robo jacks and this video we are going to test these two step-down voltage regulator based on MP 1584 chip this is a tiny chip that can convert with a subsample mentoree components around it so we're going to review these two and test them and see if they can handle the claimed 3 ampere current under different conditions so both of these can accept 4.5 228 volts and the output will be a little less than the input and it can regulate with this tiny potentiometer here and here so I've already saw that somewhere here so these two are the input as you can see so these two wires so this is the input and the input and these two are the output and with comparing to the size if I put my finger you can see that this the bottom one is twice as large as this one but even this one is very tiny as you can see but this is very tiny so they can be used in a