Fuhjythy 10W Mini Aquarium Heater Fish Tank Heater Thermostat Temperature Adjustable 5V/2A Turtle Heater Safe Tank Heater

[USB Powered Tank Heater] This heater is powered by a 5V/2A USB power supply, which is very safe. No need to worry about the fish electrocuted. Please use a 5V/2A power adapter (not included) or a 5V/2A power bank (not included) to power the heater. [Precise Temperature Display] Using smart inverter technology, this thermostat maintains the heater at a constant temperature through a built-in chip, which is more precise than knob control of the heater, and the display is easy to read the temperature. [Mini Aquarium Heater] This small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easy to hide in the fish tank. the temperature range of the English Celsius model is 18°C-34°C. Please purchase according to your needs. [Overheating Protection and Power-off Memory Function] When the water temperature exceeds the maximum temperature range, the fish tank heater stop working. The heater remember the temperature setting, and in the event of a power outage, when the power is restored, the heater follow the last setting. [Widely Used] This fish tank heater is very suitable for small fish tanks of 1-5L. Can be used in fresh and sea water, it can be used not only as an aquarium heater, but also for , pet fountains and plant seedlings.