DONGKER Mini Aquarium Heater Pico,USB Submersible for 0.5 2L Marine Saltwater and Freshwater… (5W)

Note that the Output Voltage Must Be 5V 2A (Without Power Plug) During Heating, the Heater Must Be Completely Submerged in Water for Your Safety, Please Unplug the Power Change When Cleaning the Tank Or Aquarium. IP68 Waterproof, Applicable to Water Body 0.5-2L, the Water Level Can Be as Low as 1CM, and the Water Temperature Can Be Increased By 6℃-8℃，suitable For Fresh Water and Sea Water Intelligent Temperature Control: When the Water Temperature Is Lower Than the Set Temperature, the Fish Heater Will Automatically Start Heating Until the Water Temperature Reaches the Set Temperature; When the Water Temperature Reaches the Specified Temperature Value, the Heater Will Heating Stops Automatically. Nickel Ironing Heating Wire, Fast Heating Speed, High Efficiency, Step Heating, Automatic Constant Temperature At 28 °C SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please contact us.We will provide after-sales service .