Thermostat timer socket with flexible temperature and timing control for heating or cooling. - Versatile applications: widely used in homes, reptile enclosures, greenhouses, incubators, glass containers, refrigerators, animal farms, fermentation, and other places that require temperature control. - Flexible timing and modes: supports timing cycle and countdown functions. Modes include F01 cycle timer, F02 countdown open, F03 countdown off, and F04 countdown on and off. Time range is 0 to 99 hours 59 minutes. - Automatic heating or cooling: the device selects heating or cooling based on the start and stop temperatures. If start temperature is greater than stop temperature, it operates in cooling mode; if start temperature is less, it operates in heating mode. - Easy to use and safe: plug the temperature controller into the socket, choose the timing mode, and set the start and stop temperatures to regulate heating or cooling. Temperature control range: -72F to 176F. Output: maximum 15A at 120V, 1800W. - Practical use scenarios: regulate greenhouse climate by timing a heater or vent fan; maintain reptile terrarium temperature with cycle or countdown modes; manage incubators or fermentation chambers for precise startup/shutdown temperatures. Specifications are maintained as in the original design: F01-F04 modes, 0-99h59m, start/stop temperature control, and output up to 15A/120V 1800W.