Indoor Cage External Warm Heater for Birds, Rabbits, Degus, Hedgehogs, and Guinea Pigs External Slim Heater 15W Size: W190 x D25.5 x H124mm, Cord Length 130mm *Excluding the attachment parts and protrusions. Power Consumption (※Maximum Value): 15W (±10%) Easy to handle with an external design. A warm heater for birds and small animals. Double safety design with a Japanese-made PTC heater and electronic temperature control. Compact size, 15W. How to Install the Heater ※This is an external type of thermal insulation equipment for cages. ・In principle, attach this product to the outside of the cage mesh. ・Only for hedgehogs and guinea pigs, it can be suspended from the top of the cage interior.