Cooling capacity up to 30° C below ambient temperature. With internal ventilation for optimum air distribution. Wear-free fan for long service life. Model TC-14/21/35: with intelligent energy-saving circuit for battery-saving energy supply; switches to economy mode when the set temperature is reached. If the internal temperature rises again (e.g. due to warm chilled goods), the system switches to full cooling capacity. Soft-touch control panel: with comfort function such as memory (stores last setting); multi-stage thermostat adjustable from +1°-15° C and +50°-65°C (heating mode)