Feature: 1. The blade is built with copper sleeve inserts, which will not damage the nylon fiber when the bolt is tightened, making it difficult to deform or break. 2. The groove and blade of the hub adopt a close-fitting designed, which makes the blade and the hub more precise. 3. The double groove ball bearing used is thicker, and it is not easy to shake when the machine is running. 4. Use three-phase AC permanent magnet generator, the use effect is better. 5. The wind direction adjustment method that automatically adjusts to the wind is more efficient. Specification: Item Type: Wind Generator Kit Model: NE-100S3 Rated Power: 100W Maximum Power: 130W Optional Rated Voltage: 12V, 24V Start Up Wind Speed: 2.0m / s Rated Wind Speed: 10m / s Safe Wind Speed: 55m / s Blades Quantity: 3pcs Blade Length: Approx. 530mm / 20.9in Installation Method: Hoop connection Blade Material: Nylon fiber Generator Type Generator: Three phase permanent magnet ac generator Brake Mode: Electromagnetic Electromagnet Speed Regulation: Automatically adjust windward Working Temperature: -40 ?? ?? 80 ??. Package List: 1 x Body 3 x Blade 1 x Fairing 6 x Screws Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.