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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@DrAzzy
15A/panel * 18 panel = 270A
That is not 600W, that's... 5*270=1350W....
You can't use a computer supply for that even one rated at 1350W - computer power supplies are a whole bunch of supplies sharing a common ground, sized in the appropriate ratios for a desktop computer. The wattage on the box being the wattage of all these supplies summed together. If you look at detailed specs, you will find that the +5V output is rated much lower than you expect. Most of that power is only on the 12V side.
You are going to need to get more creative with your power source if you're going to run a 1.35 KW LED array