Tested and confirmed working. Used for 3 months. Model 1: 180mm x 150mm, Stable power consumption: equivalent to 4W (for mini to small breeding cases) Please comment if you have any questions! The following is an excerpt from the website: Features Pitali Tekion Plus is a film heater ideal for reptiles, amphibians, insects, and small animals. It uses carbon resin as a special ink. The amount of electricity and resistance are automatically adjusted by the separation and bonding of particles due to changes in environmental temperature. It's an innovative system that raises the temperature at low temperatures and lowers the temperature at high temperatures to maintain a constant temperature. Pitali Tekion has no switches for temperature settings, making it easy and convenient. It quickly senses changes in the outside temperature when the power is turned on and always maintains an appropriate temperature. ▶ Surface temperature 48°C ± 5°C (45°C ± 5°C for Model 4 only) ▶ Self-temperature control function ▶ Overheat prevention device ▶ Flame-retardant film used ◆ Quickly senses the outside temperature and automatically changes the surface temperature to create an optimal breeding environment inside the cage. ◆ Covers the drop in temperature in mid-winter and the excessive rise in temperature in spring and autumn. ◆ Temperature can be adjusted to suit the animal depending on the installation location. *It is not waterproof, so it cannot be used inside the cage.