The cooling technology in thermoelectric wine refrigerators for 8, 12 and 16 bottles is based on the Peltier effect. These fridges can only be used freestanding and are subject to the outside temperatures. The lower temperature limit is 12° C - 15° C from the outside. Especially in summer and in warmer environments it may happen that the set temperature in the wine cooler can not be reached. Example 1: Environment temperature 25° C, maximum achievable temperature in the wine cooler