The Panasonic Eco Inverter YU Series (AKH-1) is a range of energy-efficient air conditioners available in various cooling capacities (1hp, 1.5hp, 2hp, 2.5hp, and 3hp). These air conditioners utilize inverter technology for optimized cooling performance and reduced energy consumption. The 'Eco Inverter' label suggests a focus on eco-friendly operation and cost savings. The YU Series offers a blend of cooling power and efficiency suitable for diverse room sizes and requirements.