400W Wind Turbine Generator,12V Wind Generator Kit with MPPT Controller 3 Blades Suitable for Boats, Gazebos, Chalets, or Mobile Homes

Yes it does produce power, under less than perfect conditions is has produced 200 watts.I live at the beach and we usually have a 20mph wind, it does great, the charge controller not so much. As soon as it starts to produce, it applies the brake. I just added a rectifier and a manual brake switch if I ever need it. It has seen 45mph winds and just kept right on spinning and making power. I just purchased a second one and will be mounting both with stands on top of my shop.The flex of my mounting is what has limited the power output, any flex causes the angle to be lost and the blades to slow down.If you are on the fence, buy it. Its cheap and it takes a little tinkering to get it right, but well worth it.Outperforms my 400watt solar array on a regular basis.

The package did not include the required assembly tool (which was referenced in directions). After testing with a multi meter and checking all the connections the turbine never produced over 4 amps at 12 volts and even then the wind had to be blowing so hard that the turbine actually made a whistling noise it was moving too fast. The included battery charger worked so poorly that is would immediately start breaking the turbine or not send any charge to the batteries. Don't waste your time.

The media could not be loaded. This thing works. It’s a wee bit on the loud side though. I mounted mine at 11.5 feet and had no issues with it… wired it up to have a hybrid solar/wind system.

I got one of these and put it up three days ago. So far it has made 611 watts total. Not that it cant make more. I see it is way more capable of making more. The controller is junk. Today was the windiest. steady 20 to 25 mph all day and all the controller did was unload every time it started making power. When it does that it hits the brakes. Once I seen it charging my 24V battery bank and it was producing over 100 watts. Not the 400 advertised yet with the bake always coming one kind of expect it. I ordered a 600W MPPT controller and will see how well it produces with that and will update my review then. Even with the cost of a marsrock controller still believe its an excellent deal at the current price.

Like others have said, you basically need stormy conditions for this to run effectively.I don’t know if it ever produced any electricity, but it ran 3-times in the last month, and it is windy here…🤷‍♂️

The media could not be loaded. The order was fulfilled very quickly and received very fast from FedEx. Very few steps and pretty straightforward to setup. You need a pretty good breeze to get it started but the build is very sturdy. I only needed to get 12 gauge wire from Home Depot, the three phase coming from motor and the battery charge uses 14 gauge which is a little sketchy for 30w at 12v. Metal pipes and flanges can be found easily at Home Depot for it and I’m very happy with it so far.

The media could not be loaded. Let me start by saying that the seller was very responsive and refunded my money for the purchase. This is the only reason it's not 1 star. They clearly didn't make the turbine but were simply "distributing" it from what they called their supplier. The seller indicated in their last email to me that "the seller had concluded that my unit was defective based on my video of the turbine in action" and refunded my money. I can't complain with the outcome or the seller's responsiveness. However, I do not think my unit was defective as much as there is false advertising in what the turbine will do.Read on for my review and view my attached video to see start up speed issues and a picture of wattage performance on a grid tie inverter at 10-15mph winds.Pros:1. The aluminum housing is sturdy and seems well built2. It will work with a battery or grid tie inverter which a lot of people asked about but very few replied. As long as you buy a separate rectifier to turn the 3 phase wild AC into DC, you can use a grid tie inverter. It won't be optimal, but rest assured that I tried it and it hands down works.3. The seller was good to work with and never took more than 24 hours to respond.Cons:1. The cut in speed for the blades to begin turning is absolutely NOT 5.5mph. From several tests I've done with an anemometer, it appears to be closer to 7.5 mph or 8 mph to actually begin turning.2. To actually MAKE power you need to have sustained wind of at least 10mph preferably at least 12mph. Even with those speeds, the turbine only produces about 20-40 watts. I measured a gust of 40 mph and it produced 204 watts. By these calculations, you'd essentially need to live in a nearly hurricane force wind zone to make this thing financially viable.3. You'll have to buy a brake separate or make one by modifying a 8 slot breaker box and rigging it to have 2 sets of 3 breakers as a "brake" and a "load". For many power companies that's all they require but check with your local utility.4. The wind direction fin is too small. If there is any variability in the wind direction, this turbine will constantly be pushed in different directions as it tries to orient itself. Because the fin is designed too small, it often flips itself around completely opposite of the prevailing wind and slows the blades to a stop. This happens frequently and stops its momentum and kills the power generating ability. This probably seems obvious but you want the blades to keep turning constantly without losing momentum. The other issue with the small fin is that if the wind is a lower 5-6mph, often it's not enough to reorient the turbine towards the correct direction of the wind to even try to make power. I readily admit that in areas with constant single direction for prevailing winds, this probably would be a big deal. However, here in the midwest where winds switch around as storms or fronts move through, this is a deal breaker.In short, will this thing make power? Well... yes, but not very much. If you are at the beach or at the top of a ridge/mountain, or have an open plain that has constant 12mph or more wind speed, you might make a little. At 20mph sustained, my turbine was making about 40-60 watts of power, which seemed ridiculously low compared to the 400 watt advertising. In order to hit the 400watts based on real world experience with this thing, it would probably take something close to a 60-70mph sustained wind. That's just not logical for most of the world. At those speeds I'd be extremely concerned about survival of the blades and turbine.Is it worth the money? Absolutely NOT. You're much better off saving a little more money and buying a Renogy or other good quality solar panel and a decent solar battery or two. I've had this turbine for about a month and my peak power production was .07kWh for a very very windy day. Even though solar cant charge batteries at night... neither can a junk wind turbine. I've decided that I'm better off buying a few more panels and batteries rather than counting on this to charge at night or during storms. Maybe for an RV it might work due to the small load requirements, but for a home load its useless. I'd need a yard full of them to make a difference if this turbine is any example. Per dollar invested you're better off with solar... plus solar doesn't have moving parts to wear out like the turbine does.

I live totally off grid and needed some back up for my PV array and this particular wind generator does a great job charging my battery array at night with a mild to medium wind velocity. Very easy to assemble and set up, and puts out a steady 3 amps (cycles somewhat for wind fluctuations) up to 20amps in heavy winds. Has auto shut down in the rectifying unit to keep from over loading the battery array and you can easily “short” connect the two dc outlet leads (from the rectifier) to brake the system, make sure that it is disconnected from the battery array before doing so or you will short out your system. All in all well made and they stand behind their equipment, I should know had to replace two blades and it was done at no charge.