I have given the 24VDC 2000W 4000W a 5 star rating and will change the rating if it doesn't work. It is used to replace a failed 2000W RF unit. It will be placed in a remote location and will produce 1/2 HP. deep water pump for livestock. I keep my fingers crossed. It's backed by an 18-month warranty and we've added an extended warranty from Revain. We also look at their 5000W unit. The only difficult problem is the lack of communication with a living person when looking for information. I will update this review when the device is up and running. Well Pump Specifications: 90ft water depth, 1/2HP, 110V, 60Hz, 25GPM. Anyone with a remote well and livestock should be back for our update in a week. UPDATE Giandel 2000w MSW has been running a well pump for over a month. Surprised I installed charge controllers correctly, they have been working with solar for 10 years. The fans never turn off, which is fine until the battery dies and the cattle get water. I leave installed as it works well despite this defect. There are some readings that are shown on the LED display, but I can't find any documentation on how to interpret the display codes. I'm not the only one who noticed this. It would be nice if it was in the instructions. I will update this review in August, let it sink in during the hot months. TTFN. Just a footnote. Why all reviews of its various inverters merge into one heap. It seems to me that this complements the reviews. I'm just saying. Ok, this is September 24th. The device has been working remotely and still hasn't failed. The fan is still running 24 hours a day, 7 days a week. I don't care what the support says, it's still an error, but it works by keeping the well pump running. Upgrade to 4 stars. Not 5 stars because it hurts not to have a guide. July 2021 I forgot the remote fountain and went to check it out. This inverter still supplies the well pump with electricity, the water tank is full. 14 months. No hiccups isn't bad at all. This is my last update. I still wish there was a manual and the fans were off. But I can't say it's a bad product. This took much longer than expected. Goodbye last update
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