1、Premium semiconductor cooler with super power and long durability. 2、Internal fin design has greater contact area with water, which improves cooling performance. 3、The large area cooling block has more contact area with air for good cooling dissipation. 4、This 15L water cooler can reduce temperature to 8-10 degrees below normal temperature. 5、Set the temperature range according to the local ambient temperature, it is not only energy-saving but also conducive to the growth of ornamental fish. Features: 1. Premium semiconductor cooler with super power and long durability. 2. Internal fin design has greater contact area with water, which improves cooling performance. 3. The large area cooling block has more contact area with air for good cooling dissipation. 4. This 15L water cooler can reduce temperature to 8-10 degrees below normal temperature. 5. Set the temperature range according to the local ambient temperature, it is not only energy-saving but also conducive to the growth of ornamental fish.   Specification: Condition: 100% brand new Power Supply: DC 12V 6A Total Power Consumption: 72W Cooling Power: 50W Size (L*W*H): Approx. 11.5*10* 7.5cm / 4.53* 3.94* 2.95in Weight: Approx. 384g/ 13.5oz   Package list: 1 * Cooler   Note: 1. Refrigeration effect depends on the size of the cooling space, ambient temperature, heat insulation, sealability ,etc. 2. Please allow slight error due to manual measurement. Thanks for your understanding.