Carrier 12K 3 Star XCEL LUMO EXI Inverter R32 Split Ac Capacity is 12,000 BTU cooling capability, appropriate for rooms up to medium size. With the help of the XCEL LUMO EXI inverter technology, energy efficiency may be increased by allowing the compressor to change speed in response to cooling demand. Star Rating: A moderate level of energy efficiency is indicated by the 3-star energy efficiency rating. Refrigerant: R32, which has a reputation for having less of an adverse effect on the environment than certain earlier refrigerants. Split air conditioning units are designed with an indoor unit for room installation and an outdoor unit for outdoor placement. XCEL LUMO EXI Series: A particular model line or series from Carrier's product lineup. Extra Features: These could include sleep mode, timer settings, air purifiers, and smart connectivity, depending on the model.