Three Modes: 1.High Heat (1500-watt), 2. Low Heat(750-watt ),3. Fan Only. This ceramic space heater with safety Positive Temperature Coefficient (PTC) heating element is perfect for a medium-sized room. It has three optional output methods. ?1500-watt? is suitable for rapid increase of room temperature, and ?750-watt? is sufficient for power saving. It is suitable for special environments such as homes, offices, and bedrooms. The fan can also be used alone. Thermostat and protection system: This heater is safer than most other types of space heaters,It has an adjustable thermostat to set the temperature and a automatic overheat protection function to protect the heater overheat. it also have a tip-over switch to automatically shut off unit when tipped forward or backward. Care and cleaning : Remove the plug from the power socket and allow heater tocool. To clean enclosure,use a clean,soft and lightly damp cloth togently wipe off the dirt from thesurface of the unit.Be sure not to wet the heating element and theswitches.Allow the unit to dry completely before using it. CAUTION: DO NOT ALLOW WATER TO RUN INTO THE INTERIOR OF THEHEAR AS THIS COULD CREATE A FIRE OR ELECTRIC SHOCK HAZRD. Safety Instructions: Always plug the heater directly into a wall outlet. Never use it with an extension cord for best performance.