This product is a BEKO air conditioner available in both inverter and non-inverter models. It comes in three horsepower options: 1.0HP, 1.5HP, and 2.0HP. The model numbers include 090, 091, 120, 121, 180, and 181, indicating different features or variations within the horsepower ranges. An inverter model offers more energy-efficient operation compared to the non-inverter option.