1)Energy Grade A+. 2)R410A DC Inverter type, saving power by 40%. 3)Quiet operation with low noise level. 4)With auto defrosting system, powerful heating even at low ambient temperature -15 Centigrade . 5)Capacity Range: 9000btu, 12000btu, 18000btu & 24000btu. 6)With CE approval for R410A DC Inverter type air conditioner. 7)With RoHs Compliance for R410A DC Inverter type air conditioner.