These 2 new ExoTerra 100W Infrared Basking Spot heat bulbs have never been used. One is still in the box, the other is not. They are for keeping warm reptiles, amphibians, chickens, and although also used in outdoor heated cat houses, this wattage is too high for cat houses that are small to medium sized. Phone # left gets fastest response, and I try to respond in order of inquiry. Can be left conveniently on front stoop or in front garden for pickup.