Aquaria Tech informs:

Cooling fan with tank-edge attachment. This device is particularly effective for ventilating the water surface of your aquarium. Thanks to its special design, it has a high cooling efficiency and also eliminates water surface tension that is particularly detrimental to the ammonia process in sea water. Protects aquarium inhabitants from overheating. Lowers the water temperature by 2-4°C (depending on the temperature of the environment in which the aquarium is placed).

CHARACTERISTICS:

• The 12VDC transformer makes this product particularly safe.
• Amperage: 0.43A
• 2 power levels selectable via 3-position switch
• For aquaria up to 30-40 litres with glass thicknesses up to 10 mm
• Dimensions mm 75x162x85
• Max. airflow: 13.6 CFM
• Noise level: <39dB