Feature: 1. POWER SOURCE: Solar windmill uses bright crystalline silicon solar panels as power source, which is divided into 3 parts, base, connecting rod and blades. 2. OPERATION PROCESS: In the sunlight, solar panel converts light energy into electric energy to drive the fan blades to start rotating, and has fashionable shape. 3. ENVIRONMENTAL PROTECTION: Ordinary batteries and rechargeable batteries are not installed, and they are directly driven by solar energy, which can be used as teaching aids for students. 4. IMPROVING ABILITY: Suitable for children over 8 years old, it can exercise their hands on ability and stimulate their curiosity and thirst for knowledge. 5. APPLICABLE SCENES: Placed on the balcony or desk in front of the window, in the office, through lighting, blade will rotate, is also very suitable for holiday gifts Specification: Item Type: Solar powered wind model Material: ABS, electronic component Size: Approx. 14 x 9 x 26cm / 5.5 x 3.5 x 10.2in. Package List: 1 x Base1 x Windmill Column4 x Windmill Accessories1 x Instruction Note: Solar toys must be driven under the strong light of the sun. Generally, there are 2 ways:1. Under the strong light of the sun.2. A 60 watt or more light bulb or Yuba can be driven.