This Beko air conditioner is available in both inverter and non-inverter models, offering cooling solutions for various needs and budgets. It comes in three different horsepower options: 1.0HP, 1.5HP, and 2.0HP. Specific model numbers include 090, 091, 120, 121, 180, and 181. The '090/091' typically represent a 1.0HP unit, '120/121' a 1.5HP, and '180/181' a 2.0HP. Inverter models usually provide greater energy efficiency and quieter operation compared to non-inverter models. The various models ensure users can choose the appropriate cooling capacity for their room size and preferences.