General description The Mini USB Plug Aquarium Heater is a compact and practical solution for heating small aquariums, turtle shells, and small tanks. Designed for low water level environments, this durable and waterproof heater is easy to carry and simple in appearance, making it an ideal choice for aquarium enthusiasts. Technical specifications Power: 10W Voltage: 5V Heating capacity: 1-2 liters Usage The heater operates by simply plugging it in to start heating. The normal temperature rise is between 1-4°C per hour, depending on the water volume and ambient temperature. The built-in thermostat sends signals to the heater based on the aquarium's temperature, ensuring efficient heating.