Yescom New Aquarium Heater 100W Anti-Explosion Adjustable Submersible Fish Tank Water 110V Great for both fresh and salt water aquarium, and easy to install Upgraded electronic thermostat controls the temperature with high accuracy, and will be shut off automatically when the temperature is reached Temperature range: 64&deg;F-90&deg;F(18&deg;C-32&deg;C) Material: shatterproof glass | Voltage: 110V, 60Hz | Power: 100W Package Contents: 1x Aquarium Glass Heaters, 1x Suction Cups, 1x Manual