Product Description:This product is installed by way of the fan behind heat carrier, the fan attracts air into the body, the warmth carrier is heated into a hot air, and then despatched out during the outlet body heat air (Must be placed in a sealed area usage, if little impact on open space, heating can't be stored)Product Dimensions: Diameter: 13, height: 14cmPower: Three adjustable 100W 200W 300WFeatures: Patented product, waterproof, explosion-proof, excessive temperature: sterile chicken, pigs, dogs, cats, etc: 1 PcNotice: The length is measured by way of hands, please allow minor error of size Photo shade might be a little diversified from the actual product due to colour reveal of different displays