Feature: 1. TWO LEVELS OF WIND CONTROL: Fish tank cooling fan sets two levels of air control to lower the water temperature to 2‑4℃ according to the room temperature to meet the daily use of the fish tank. 2. ANGLE ADJUSTABLE: The width of the aquarium water cooling fan and bracket is adjustable up to 45 degree, making it practical and easy to install and move. 3. SAFE AND RELIABLE: Aquarium cooling fan is rated at 12V safety voltage with high safety standards to ensure fan safety, which could be the best choice for you. 4. EASY TO INSTALL: Fish tank fan requires no assembly and is easy to use. Adjustable jaws can hold tank wall up to 1.2cm/0.5in thick. You have two wind intension to choose from. 5. UPGRADED DESIGN: Aquarium chillers for salt and fresh water. It reduces heat transfer from aquarium equipment and is quieter and more flexible than ordinary fans. Specification: Item Type: Fish Tank Cooling Fan Material: ABS Plug: EU Plug: 100-240V Features: 1. Elegant and Beautiful 2. Hanging Design, Safe and Stable 3. Use DC12V DC Power, Safe and Secure 4. Coil Away from the Water Cover of the Fish Tank, Will Not Cause Short Circuit Danger 5. Free Adjustment of Wind Speed, According to the Weather and Indoor Temperature, the Temperature Can Be Reduced by 2-4 Degrees Celsius 6. Reduce the Noise, Free to Adjust the Angle. Package List: 2 x Plastic Clips1 x Plug1 x Fish Tank Cooling Fan