1Suitable for small space cooling, semiconductor refrigeration learning theory, research solutions developed cooling equipment planning 2Air cooling device, not used to cool the water, use water to dissipate heat, and eventually the water is hot, not cold 3This kit is a finished product that does not need to be assembled 4Stable work and low noise, no refrigerant required 5Suitable for 20L space cooling, air temperature can be cooled to 5-8 degrees than normal Features:Suitable for small space cooling, semiconductor refrigeration learning theory, research solutions developed cooling equipment planning.Air cooling device, not used to cool the water, use water to dissipate heat, and eventually the water is hot, not cold.This kit is a finished product that does not need to be assembledStable work and low noise, no refrigerant required.Suitable for 20L space cooling, air temperature can be cooled to 5-8 degrees than normal.Specifications: Maximum power: 288W (15.4v)Maximum current: 24ARated voltage: DC 12VRated current: 17ARefrigeration power: 170WProduct size: 180* 65 * 62mm/7.09*2.56*2.44Package Included:1 x Thermoelectric Cooler(have assembled)This cooler kit included:4 x 40*40mm fan1 x Cooling block1x Water Block3 sets xfixtures1 set x screw(6 pcs screws + fan screws 16pcs),4 x TEC1-12706Note: 1. That we sell is finished product,don't need to assemble. 2.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.