I installed it near the garage for testing purposes and used it as a lawnmower battery. Most of the time the house blocked too much wind to keep the rotor blades spinning. Still, the device did an excellent job of keeping the battery healthy. Watching the random rotation of the leaves gave me enough time to think about the real possibilities of the generator. Below are my thoughts: 400 watts is peak power at top speed. Expect this to be very rare. Top ratings are not very useful. Instead, average values are used to determine the work that electricity can do. The average power of 400 WP is 282.8 W. From the information on the Internet it is not clear whether 400 watts is peak or peak. So, the most pessimistic estimate - the average operating power is only 141.4 watts. So, pessimistically, the generator is capable of delivering up to 9.4A for a limited period of time. I wouldn't expect it to power anything directly, but I'm comfortable using it to keep the battery charged, perhaps in combination with a solar panel. Despite claims of having torsion-resistant blades, mine seems to have, reducing efficiency a bit more.
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