These came off of operation Primaflex machines. They are believed to be operational and are without physical damage other than normal minor scratching. The usual application is with non=communicative patients who might not be able to ask for a change in fluid temperature. These 200 watt heaters are European made but are 115 VAC poweredReturn Policy If you find the item is not as described in the ad it may be returned for a purchase price refund. Generally, all of our items have an inspection warranty which kicks in upon delivery for a period of 7 to 14 days. It is not an operational warranty as most items sold on DOTmed require biomedical certification before use. If you require additional coverage please contact us prior to purchase.