Upnorth,
Thanks for the help. Here is the Meanwell data sheet for the RS-15-5.
https://www.meanwell.com/Upload/PDF/...RS-15-SPEC.PDF
I don’t see anything that indicates a minimum current? The current spec says 0-3 Amps.
Although there was one answer on Amazon by the seller Jameco Electronics that said it needed 10% minimum load.
Question: Would this work powering a USB port for a phone charger?
Answer: As this is a switch mode type supply, it requires 10% of the rated wattage as a minimum load or 1.5 watts. One may have to power cycle the unit once a suitable load is applied for it to remain "on".
By Jameco Electronics SELLER on August 12, 2019
https://www.amazon.com/MEAN-WELL-RS-.../dp/B005T6UJBU