The Blue Star 1.5 Ton 3 Star Wi-Fi Smart Inverter Split AC delivers strong and reliable cooling for medium-sized rooms, with a 3 Star energy rating (ISEER ~3.8) that balances performance with reasonable electricity use. Its inverter compressor runs efficiently and quietly, adjusting speed as needed to maintain the desired temperature. The Turbo Cool mode gives an extra boost of cooling power for hot summer days, while inverter control helps stabilize power usage.