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A solar fan may also include a charge controller, which regulates the flow of electrical energy between the solar panel, battery, and motor. The charge controller ensures that the battery is charged efficiently and prevents overcharging or discharging, which can damage the battery.Overall, a solar fan harnesses the power of the sun to provide a sustainable and eco-friendly source of energy to power its operation. It is a simple yet effective way to provide cooling in areas where electricity is not readily available or reliable.1. Made of high quality materials, environmental protection, waterproof, durable and sensitive.2. Can be used for mobile , mobile power group charging.3. Lightweight, foldable, lightweight and easy to carry.4. The electricity is continuously supplied even on cloudy days.5. Suitable for outdoor activities, emergencies and outdoor work.6. Light and thin, easy to store and install1.For all your inquires about us or our products, we will reply you in details within 24 hours.2.We own well-trained and possession sale & after-sale services who can speak fluent English language.3.We offer OEM services. Can customize the retail box packing and other things.1: We are a brand chain company, and we have strong professional manufacturing capacity in lighting productsWe can give you very competitive prices.2: We have our own export team, with more than 10 years of foreign trade and export experience, which can helpYou arrange to ship containerized goods from different factories you ordered in China, except oursProducts.3: We can help you quickly complete the customs clearance of the entire container from different ports in ChinaIn this way, you can save freight and customs clearance costs.4: We can provide you with more cost-effective and hot selling new products at the first time when you can't do it
A charge controller could certain do it, but so could a buck regulator (most SCCs are buck). Where you'll run into problems is the stall current for the motor. Solar panels are more current oriented than voltage oriented, ie open circuit it takes little sun light to bring the panel up to full voltage but in very little light there will be very little current to prop the voltage up.A simple voltage switch would see the panel voltage rise up to its turn on point well before the panel produces enough current to run the motor. The voltage will then collapse as the motor tries to start. Rinse and repeat as necessary, all the time with the motor windings heating up as panel power increases as the sun rises. Eventually the panel would produce enough current to allow the motor's draw to not pull the voltage down below the voltage operated switch's turn off threshold and in time enough to start the motor....all the while the windings keep heating up.There are solutions to this, load resistors and sensing current flowing across them and once it rises to a point you decide, the motor is turned on and the load resistors turned off. Of course, these things already exist.
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