The Zoo-Med Paludarium Heater 50w is a programmable heater designed for use in paludariums and aquatic habitats up to 15 gallons of water. It features a digital temperature display, is fully submersible, and has an auto shut-off function for safety if removed from water. The heater can be mounted on the side or back wall of the habitat using suction cups and has an extra-long 9.8-foot cord for convenience. It can be programmed to heat the water from 68-93°F (20-34°C), ensuring the right temperature for the health of aquatic pets.