The first AC is LG, it's almost new, cools well, has no defects, and was used cleanly. I bought it a few years ago. The second AC is Samsung, it's old, but its cooling is excellent and good. Honestly, this is all I know about it because I bought the house with it installed. It has been working for me for more than five years, and I have never repaired it, God is my witness. As for the units, I couldn't figure them out, but I expect them to be from 20 and above. The reason for selling them is that I bought a Shiyak split AC. That's all.