The CHIQ series of air conditioners offers cooling solutions in various capacities: 1.0HP (CSDC-09DDE & CSC-09DDA), 1.5HP (CSDC-12DDE & CSC-12DDA), and 2.0HP (CSDC-18DDE & CSC-17DDA). These models are designed to provide efficient cooling for different room sizes. The specific features and technologies may vary between the 'DDE' and 'DDA' sub-models, but all are intended to deliver reliable temperature control and comfort.