The K&H Extreme Weather Kitty Pad Petite outdoor heated kitty pad is an essential source of warmth for any cat that spends time out doors. Its internal thermostat keeps the surface nice and warm even in the coldest of temperatures. Place in a shed garage barn or anywhere your outdoor kitties spend time. Only 25 watts is all that?s needed to keep the indoor or outdoor pet warm and comfy even in the coldest of climates. We?ve cleverly rounded all the edges to take away a chewing surface and even capped the cord entrance and the first 18? of the power cord with steel. Holes in the 4 corners of the pad are the perfect anchor points to keep the pad in place. Screws can be used to anchor the pad on wood surfaces or wired in place for wire floored cages. One year limited warranty. This outdoor heated cat bed has been tested & certified by MET Labs to exceed USA/CA electrical safety standards. Measures 9 X 12 inches and uses 25 watts.