TITANGOLD is TCL patented painting formula on the high efficiency heat exchangers that makes the whole indoor unit a huge Catalyst Filtre , and lasts life time long . Since 2004 , TCL AC and DC inverter air conditioning products are proved to be of stable operation , reliable quality , and high efficiency by hundreds of thousands of consumers all around the world . Low Voltage Startup Computer Remote Control Ultra Low Temperature Cooling & Heating Quick Connector