The Optimus infrared quartz radiant heater provides instant sun-like warmth for fast focused spot heating. This energy-efficient unit has two heat settings and safety shut off. Instant, Sun-like Warmth Radiant Heat SourceEnergy Savings of 400 or 800 Watts.Automatic Reset Temperature Limit ControlCool Touch Housing and Ultra Quiet OperationTip-Over Safety SwitchOverheat Thermal Cut-Off Safety DeviceBuilt-in Carrying Handle