The 400W infrared panel heaters are economical to use and an environmentally responsible alternative to 1500W heaters. These heaters generate infrared rays that provide comforting warmth using the same principle as the sun. The infrared heat is distributed uniformly across the room and absorbed by objects and walls that release the warmth back to the room creating an overall feeling of warmth. This maintenance-free heater can save up to 70% on heating costs. Great for bedrooms, offices, kitchens, basements, etc. Can be used for residential, commercial, or industrial applications!