Super Mini Size: YukiHalu 10W aquarium heater is designed for the mini fish tanks less than 1 gallon. Compact design, take less space and easy to hide in the fish tank. Temperature can be accurately adjusted from 64 to 93°F
Powered by USB 5V/2A. Insufficient power of the adapter will cause no heating and the number will flash or the controller restarts repeatedly, make sure the power adapter is 5V 2A and has enough power
Automatic Constant Temperature: Thanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1℉. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached
Overheating Protection: The power will be cut off and stop heating automatically if the heater overheating. Protect your fish. Never cook your fish. USB 5V power supply, prevent electric shock
Use external temperature controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank
Settings Can be Memorised: The heater will remember the temperature setting, no need to reset the temperature after power off

Product description

Press the 'SET' button to adjust the temperature. No operation for 3 seconds, the setting is confirmed to be activated. Then the heater starts heating. Red indicator lights on. Stop heating automatically when the setting temperature reached. Green indicator lights on.

The current of the USB adapter must not be less than 2 amperes

Super compact size, Easy to hide in the tank

Automatic constant temperature with smart memory function

Adjustable temperature controller, Easy to set, Easy to read

Prevent to cook your fish

Suitable for saltwater and freshwater