This is a set of Marukan's bird-warming light bulb and Minimal Thermo. By using the Minimal Thermo together, you can maintain a constant temperature. ● Minimal Thermo The sensor detects the surrounding temperature and turns the heater ON/OFF to keep the temperature constant. Control temperature range: 15～40℃ Connectable heater: 310W Body size (mm): W48 x D32 x H118 ● Warming Light Bulb This is a light bulb-type heater that radiates heat and gently warms your pet's body. It is protected by a steel cover to prevent pets from playing with it. Specification: 40W Body size (mm): φ75 x H170 Thank you for viewing.