12V Mini Air Conditioner Cooling Kit - Peltier Thermoelectric Refrigeration System for Small Fish Tanks, DIY Electronics & Car Cooling | Portable Water Chiller for Aquariums, PC & Automotive Use

Fish tank mini refrigerator, water cooling artifact Please Note 1: The upgraded single core is suitable for water capacity of 20L, and the power supply is equipped with 100w . 2: the upgraded dual-core is suitable for water capacity of 38L, and the power supply is equipped with 180w. 1: The upgraded version is smaller. 2. The upgraded version has stronger heat dissipation. 3: The upgraded version has stronger refrigeration. 4: The upgraded version has a round edge, which is not easy to hurt people. 5. Under the same conditions, the upgraded cold end is 2-4 degrees lower than the normal version. The connection is simple as shown in the figure. please note 1: The positive stage of the power supply is connected with the red line of the refrigerator, and the negative pole is connected with the black line of the refrigerator. 2. If the touch water head is cold, the water temperature does not drop obviously, probably because the fish tank is too big. 3. The power supply affects the cooling effect. If it is a single-core refrigerator, it is recommended to be more than 100w, and if it is a dual-core refrigerator, it is recommended to be more than 180w 4. The water pipe should not be too long to prevent water from flowing back to the temperature too much.