- Amazon Business : For business-only pricing, quantity discounts and FREE Shipping. Register a free business account
More to consider from our brands
Page 1 of 1 Start overPage 1 of 1
Special offers and product promotions
Compare with similar items
Customer Questions & Answers
Customer reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on March 12, 2018
Verified Purchase
Reviewed in the United States on July 24, 2020
I used some custom heavier, turbine blades, so I did not get very high RPMs when using a fan for driving the turbine, but you can see from the graph that the "No Load" voltage output is generally linear with shaft RPM, and I would expect the generator to require over 1000 RPM to reach 12 VDC no-load output. When attaching LEDs or an appropriate step-down circuit to charge a cell phone or run a USB-connected lamp, I measured output powers between 100 - 350 mW.
I attached a 15-in, 2-blade "Pacific Sky" turbine blade to the generator and got a no-load output of 15.5 - 17.5 VDC in a 4-4.5 m/s wind (as shown in the video), but had no way to directly measure the RPM of this particular blade. Extrapolating from the earlier data, I estimate 1400-1500 RPM. When attached to a 10-ohm resistive load, the voltage dropped to 1.3 - 1.5 volts, indicating an output power of around 200 mW, but I did not try to determine the optimum load for this blade configuration.
For the price, it's a bit expensive for a child's science experiment, but it seems to have limited capacity at low wind speeds (~4.5 m/s) to do much besides trickle-charging phones or perhaps 12V batteries with the appropriate turbine blades and circuitry.
Verified Purchase
Decent Construction, Low Power Output
By Patrick Ferrell on July 24, 2020
I purchased this for a wind turbine demonstration project. From outer appearances, the motor construction is not great, but decent. I did not take it apart to examine the windings on the armature or brushes on the backplate.By Patrick Ferrell on July 24, 2020
I used some custom heavier, turbine blades, so I did not get very high RPMs when using a fan for driving the turbine, but you can see from the graph that the "No Load" voltage output is generally linear with shaft RPM, and I would expect the generator to require over 1000 RPM to reach 12 VDC no-load output. When attaching LEDs or an appropriate step-down circuit to charge a cell phone or run a USB-connected lamp, I measured output powers between 100 - 350 mW.
I attached a 15-in, 2-blade "Pacific Sky" turbine blade to the generator and got a no-load output of 15.5 - 17.5 VDC in a 4-4.5 m/s wind (as shown in the video), but had no way to directly measure the RPM of this particular blade. Extrapolating from the earlier data, I estimate 1400-1500 RPM. When attached to a 10-ohm resistive load, the voltage dropped to 1.3 - 1.5 volts, indicating an output power of around 200 mW, but I did not try to determine the optimum load for this blade configuration.
For the price, it's a bit expensive for a child's science experiment, but it seems to have limited capacity at low wind speeds (~4.5 m/s) to do much besides trickle-charging phones or perhaps 12V batteries with the appropriate turbine blades and circuitry.
Images in this review
Reviewed in the United States on November 19, 2019
Verified Purchase
Reviewed in the United States on December 14, 2016
I recommend it for any wind generator project.
Verified Purchase
I recommend it for any wind generator project
By Ahmed on December 14, 2016
I judt purchased it with the wind blades for my sun project back in the school it's really arrived in time and works perfectly.By Ahmed on December 14, 2016
I recommend it for any wind generator project.
Images in this review
Reviewed in the United States on November 17, 2020
Verified Purchase
