The iPower 8x12 Reptile Heat Pad is a terrarium heater designed for tanks ranging in size from 30-40 gallons. Made by the brand iPower in China, this model (XHC-F035D) efficiently warms up terrariums to create a comfortable environment for reptiles. The heat pad is a reliable and essential accessory for maintaining the optimal temperature levels within a terrarium to help keep reptiles healthy and thriving.