I live in Texas, I have a 200W 19.5V PicoPSU, and it runs well. I use a 230W 19.5V AD/DC Adapter with plug adapter as well. But it took 3 weeks to get here from china, so I ordered the 12V version which took 2 days. Now idk how to get max power out of it. I see a lot of people purchase a 120w adapter with it. but, with my limited understanding of the concept, i feel like that would limit the PSU to 120W of load power. My build pulls up to 194w at times.