The noiseless movement of the AE2 fan blades is the result of bionic engineering inspired by the wings of a bird. Keeping you cool using less power than it takes to charge a cell phone, this unique 2-blade fan is the most efficient 2-blade fan you can find. Rated MOST EFFICIENT 2013-2020 by Energy Star, the AE2 furnishes quiet, smooth, and even airflow for a perfect living environment, all year round! Specially-shaped airfoil blades with our signature winglets are designed to create smooth and perfectly even airflow and eliminate air vortex drag and swirl (the common wind noise and strong wind tunnels of conventional fans). In addition, our Swiss-engineered self-balancing system keeps the blades in a steady, aerodynamic equilibrium, preventing them from wobbling like typical ceiling fans. Using only 10% of the energy of a conventional ceiling fan and combined with your existing AC systems, Aeratron fans help you save up to 50% on your cooling and up to 30% on your heating costs. Available in 3 sizes, 6 colors, and suitable for both indoors and outdoors (IP 44), the Aeratron AE2 can fit any type of space. Its unique and minimal design will appeal to any style, and its easy DIY installation with optional extension rod and raked ceiling kit will allow you to easily install it on any type of ceiling. Included: Hand-Held Remote Control Optional, sold separately: Light Kit, Sloped Ceiling Kit, and additional downrods available.