This auto temperature control kit comes with a greenhouse heater and a digital thermostat. Together, they can automatically keep the environment at an optimal temperature. The independent thermostat constantly monitors the temperature and switches the heater on or off to reach the desired value. The 1500-Watt heater is extremely efficient, heating up in just 3 seconds and capable of serving a greenhouse area of up to 120 sq. ft. In summer, it can switch to ventilation mode to circulate air, and the wind speed can be adjusted according to different needs. Both the heater and the thermostat are crafted from fireproof materials, and the heater has an independent overheat protection function. The 15A current thermostat controller is reliable for high - power electrical appliances. With its automatic power on/off control, it helps save energy and reduce electricity costs. Moreover, its adjustable temperature and wind speed make it suitable for a wide range of places such as greenhouses, plant areas, grow tents, garages, kitchens, living rooms, workshops, and basements. Material: Composite.