Zoo Med's new Repti Heat Cable allows you to put the heat right where you need it. Wrap it around branches or cage furniture, or use it underneath the tank or in breeder racks. Flexible, water resistant, and durable, Repti Heat Cable has numerous uses for the professional or the hobbyist. Use in wood, plastic, or glass terrariums. Low wattage, and very economical to operate. 100 Watt is 39' (12m).