This can be considered the smallest wind turbine in the world. The diameter of the fan is only 2.8cm to 6cm and it can automatically adjust the wind direction
Generator size 1.3 x 1.4 x. 1.7cm, generates 2.5~2.8V 70mA. Can charge 3-6 ultra-bright LED lights
Here's some common sense for making a homemade wind turbine:
Lots of people. want to produce wind power People who generate electricity almost don't know that they need to find a wind farm in advance. The search for a wind farm cannot be based on guesswork. It must be determined with an anemometer, otherwise the wind turbine cannot be installed. Many spinning wind turbines are "idling" and not producing electricity at all, as most wind turbines only start producing electricity when they reach a wind speed of 3.5 to 4 meters per second. A small wind turbinee 400 watts. seems to spin noisily. If the wind speed measured by the wind speed meter does not reach 4 meters per second, its energy production is "zero". Even if the wind speed reaches 4 meters per second, its power output is only 0.5 watts. . It must be To achieve wind speed above 8 meters per second (a leaf will be blown 8 meters in one second), the power generation capacity can reach the power generation "400 watts" shown on the manual . Therefore, many laymen, without first using an anemometer to find a suitable wind field, end up making, at best, a "landscape windmill".