Package Included: 1 x Aquarium Cooling Fan. 1 x US Plug (Sent with a adapter according your country). Fan Quantities: 2 Head, 3 Head, 4 Head, 5 Head, 6 Head. Cable Length: Approx. 1.47m/ 57.87''. Input: 90~240V, 50/60Hz. Output: 12V. 2 Head Fans. Power: 2.88W, 0.24A. Dimensions: Approx. 17x4.8x11.8cm/ 6.69x1.89x4.65''. 3 Head Fans. Power: 5W, 0.36A. Dimensions: Approx. 23x4.8x11.8cm/ 9.05x1.89x4.65''. 4 Head Fans. Power: 5.76W, 0.48A. Dimensions: Approx. 29x4.8x11.8cm/ 11.42x1.89x4.65''. 5 Head Fans. Power: 8W, 0.6A. Dimensions: Approx. 35x4.8x11.8cm/ 13.78x1.89x4.65''. 6 Head Fans. Power: 8.64W, 0.72A. Dimensions: Approx. 41x4.8x11.8cm/ 16.14x1.89x4.65''. 2 x attachments to fit onto rim of tank. Fits tanks rim up to: 14mm (and anything smaller). There is safe protecting net to prevent from hurting. Adjustable brackets allow for 90 degree movement of the head. Motor with big wind and little noise, loose heat fast and cooling easily. Equipped with fan holder which can change the direction of win and it is suitable for aquarium. This aquarium cooling fan can aid in helping cool your aquarium tank when it is subject to temperature raises during the day.