It’s the Allpower R600: https://iallpowers.eu/products/allpowers-r600-portable-power-station-600w-299wh-with-lifep04-battery-1?se_activity_id=185831162163&syclid=csti70imlv4s738bo1rg
It does do actual passthrough and I also measure wattage directly from the outlet.
It should choose a general instance, based on region and if not possible to pinpoint by IP, it should be a curated list of instances of which it just chooses one by random.