Description: 【Archimedes Spiral Design】: Features a micro Archimedes spiral structure that efficiently captures wind from all directions, maximizing energy conversion even at low wind speeds 【Construction】: This spiral wind turbine generator is made from quality plastic material, ensuring lightweight performance and resistance to wear for long time outdoor use 【Compact Size for Versatile Installation】: With dimensions of 30cmx38cm/11.81inchx14.96inch, this wind turbine is ideal for small spaces and easy to mount on rooftops, boats, or remote cabins 【50W Three phase Permanent Magnet Brushless Generator】: Delivers stable DC output with high efficiency and low maintenance requirements, suitable for charging batteries or powering small devices 【Complete Package Included】: Each purchase comes with a fully assembled micro wind turbine generator, ready to install and start generating Size Chart: 30cmx38cm/11.81inchx14.96inch Package Includes: 1 Spiral Wind Turbine Generator Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.