The Challoner Pet Comforters are built to a high specification for commercial use in kennels & catteries and are therefore more than adequate for home use. The continuous element maintains a constant temperature and is sealed in aluminium. The units are impervious to moisture (but should NOT be immersed in water), double insulated and earthed. The cable is 1.5 meters long braided 3 core mains cable. Their low power consumption makes them very economical to run. They can be left on day or night. NOT SUITABLE FOR WALL MOUNTING CAT1 - 9 Watts - Size - 13.25" x 8