JAHEA Small Aquarium Heater,10W Betta Heater Super Mini Aquarium Heater,Submersible Fish Tank Heater USB Powered Constant Temperature 78

Product details

• 🐠Super Mini Size - 10W small aquarium heater is “thumb size” - only 3.5” (9cm) in length. Great for nano tanks / betta tanks. The innovative super mini size perfectly solves the headache of the fish keepers on the traditional heaters! Takes up less space, easy to hide, USB powered, constant temperature 78 °F for 1-2 Gallon tanks..
• 🐢Multi-purpose – This heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work for turtles, pet fountains, and plant seedling..
• 🐡Overheating Protection, Out of Water Protection - Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level or when the water temperature exceeds 97°F. You are free from “cooking fish”!(Note: The heater must be fully submerged when in use!).
• 🐟Automatic Constant Temperature - Thanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1°F. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down electricity bill for you..
• 🐙 Easy to operate - sturdy suction cups, easy to install, and easy to control. Simply immerse the heating rod completely into the water to automatically heat. The heating rod adopts a constant temperature setting: 78.8 °F C is fixed at a constant temperature, and below 78.8 °F (26 °C), a red light will light up to start heating; Above 78.8 °F (26 °C), turn on the green light to stop heating..