One of the best ways to increase the efficiency of your refrigerator is to increase the flow of air over the cooling unit on back of the refrigerator. Often times, the side and roof vents alone are not enough.
This kit features a 4 inch, 12 volt fan with a very low .02 amp draw as well as a heavy duty toggle switch and zip ties for mounting virtually anywhere. Simply mount the fan onto the lower exterior vent and direct the cool airflow into the refrigerator compartment. Or, buy 2 kits and mount one on the top vent blowing the air out of the compartment and you will see even better results.
During times of high ambient temperatures, just turn on the toggle switch and watch the temperatures inside the box drop. Or, bypass the switch and wire directly into a thermal disc (sold seperately) and the fan will turn itself off and on when the temperature inside the compartment reaches a set point.
Independent research has shown these fans to lower the operating temperatures inside the refrigerator, decrease the time that the refrigerator reaches operating temperatures at start-up, and increase the refrigerators performance by up to 40%.