Aquarium Heater Automatic Thermostat Aquarium Heater for Horned Frog Tanks Description: [SMALL FISH HEATER]: Mini size for small aquariums, does not take up space in the aquarium, USB power supply, 10 W. [OVERHEAT PROTECTION]: USB heating rod, automatic shutdown at high temperature, safe to use. [EXTERNAL CONTROLLER]: External temperature controller, no need to soak your hands, no need to buy other controllers, easy to install, easy to control. [WIDTH OF USE]: Submersible aquarium heater is suitable for freshwater aquariums, marine aquariums, combat aquariums, mini aquariums, aquariums, turtle tanks, horned frog tanks, pet drinking water fountains, pet feeders and more. Specification: Material: glass Size Chart: Radiator: 1,8 cm x 8,5 cm / 0,71 inch x 3,35 inch Cable length: 130 cm/51,18 inch The package includes: 1 aquarium heater