The manufacturer informs:

This unit is particularly effective for ventilating the water surface of small aquaria where there is a need to optimise the available space.

Thanks to its special design, it has a remarkable cooling efficiency and also eliminates the surface tension of water that is particularly harmful to the ammonia process in seawater. The 5V transformer makes this product particularly safe.

In addition to being plugged directly into the power socket via the supplied adapter, the fan can also be connected to the USB port of a computer or a portable travel charger.

Features:

• 67X20X11 mm 0.3W
• Input voltage 12V
• Noise level: <35dB
• Lower the water temperature by 2-3°C (depending on the temperature of the environment in which the aquarium is placed)