I used this on my Java sparrow's cage when he was a child during the winter. It only provides a gentle warmth, so there's no risk of burns. Now that he's an older bird, I've switched to a heat lamp, and I no longer need this, so I'm offering it for sale to someone who doesn't mind it being used. The perch is unused. This bird heater with a perch allows birds to snuggle up when it's cold and regulate their own body temperature. - Temperature setting (approx. 40°C) - Detachable perch included - 2-WAY design: Remove the perch and attach it horizontally to warm a nest box from below. - Estimated electricity cost: Approximately 0.13 yen per hour Dimensions (mm) Heater: W85 x D15 x H130mm Perch: φ10 x Length 100mm