Measures 19 X 24 Inches and uses 40 watts. This outdoor heated dog bed/outdoor heated pet bed is perfect for the doghouse, cat house, basement, garage, barn, shed, porch or any outdoor dog or cat shelter. This soft, orthopedic bed provides comfortable warmth even in sub-zero weather. It uses an internal thermostat to keep the temperature at a desirable 102 when the pet lies upon the heated pad; and will remain 10-15 degrees above ambient air temperature when your pet is not on the bed. Soft PVC protects from water and a free removable, washable cover is included for easy care. The K&H Lectro-Soft Outdoor Heated Dog and Cat Beds are recommended for Indoor or outdoor use. Certified by MET Labs to exceed USA/CA electrical safety standards. Note: This is a soft bed that is NOT recommended for destructive dogs.