<ul><li>FOUR COPPER PIPES : This thermoelectric cooler adopted four hollow copper pipes with refrigerant inside would deliver heat fast for higher cooling efficiency .</li><li>QUACK COOLING : This thermoelectric cooler has a large cooling block that can conta ct more water for quick cooling .</li><li>2 SIZE : There are 120W for 30L fish tanks and 180W for 40L fish case , can meet your different needs . Fish case cooling , computer water cooling , circulating water cooling , cooling equipment , etc</li><li>HIGH QUALITY : This thermoelectric cooler uses high end refrigeration module which has high power and has a longer service life . No noise , no vibration , no refrigerant required .</li><li>DC 12V : This thermoelectric cooler adopted DC 12V , convenient to use . Use to Connect the pump and the power supply</li></ul><br><br>

DC 12V Thermoelectric Cooler Peltier System Semiconductor Refrigeration Water Chiller Cooling Device for Fish case, Computer Water Cooling Semiconductor Coolers(120W for 30L Tank)