Features: 1.Aquarium Cooling Fan: Help to change the direction of air flow, adding oxygen to water. Cooling fans help dissipate excess heat from aquariums during spells of hot weather, allowing aquarium inhabitants to be kept within the correct temperate range. 2. Fish Tank Cooling Fan: Lower power consumption, little noise, large air output, quickly dissipate the heat of aquarium. These fans can be used on their own, or in conjunction with an automatic temperature controller. Easy installation on the glass fish tank. 3. Mini Quiet Fans: Adjustable fan base, change the direction of air flow, adding oxygen to water. With plastic protection frame, durable and practical. These fans can be used on their own, or in conjunction with an automatic temperature controller. 4. Practical Aquarium Fish Tank Supplies:The fish tank cooling fan with plastic protection frame, durable and practical. 5. Application: This is a cooling fan for freshwater and saltwater aquariums. The wind is strong. It reduces the heat transfer from aquarium equipment. It is quieter and more flexible than ordinary fans. Specifications: Voltage: 100-240V Wattage: 2.2W / 4.3W / 6.5W / 8.6W / 10.8W / 13W Material: Plastic Application:Fresh water and Salt water Caution: 1. We may send you a plug adapter((EU, US, AU, UK,etc) according to your country . If you need another type, please leave a message after ordering or contact us directly.