Carrier 1.5 Ton 5 Star Inverter AC - White(18K 5 Star Ester Neo Hybridjet Inverter R32 (I015) / 18K 5 Star Hybridjet Inverter R32 ODU (I015), Copper Condenser) vs Hitachi 1.5 Ton 4 Star Split Inverter AC - White(RSN/ESN/CSN-417HCEA, Copper Condenser)