[Fast and Widespread Heating] The KNIGHT oil heater has high and low heating modes to quickly heat the air around you in seconds. The high power of 500W allows the heating area of this oil heater to reach 100 sq. ft, which is very suitable for personal use, allowing you to enjoy a warm and comfortable life in the cold winter. This oil heater will be your long-term partner for work, study, and sleep. You can enjoy the warm environment to the maximum. [Energy Efficient & Safe Heater] A special temperature sensor in the electric space heater to keep your room maintained at a comfortable temperature. The thoughtful energy-saving design makes you no longer need to worry about high electricity bills. The overheating protection function allows you to sleep peacefully. When the internal temperature of the oil heater is higher than 105 degrees, it will automatically power off. Whether it's a home or office, this heater is an ideal choice for you.