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EF ECOFLOW Solar Generator 120V/3.6KWh DELTA Pro with 400W Portable Solar Panel, 23% High Efficiency, 5 AC Outlets, 3600W Portable Power Station for Home Backup Outdoors Camping RV Emergency

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Availability: Only 10 left in stock, order soon!
Fulfilled by EcoFlow Inc.

Arrives Sep 26 – Oct 1
Order within 15 hours and 9 minutes
Available payment plans shown during checkout

Style: DELTA Pro+400W Solar Panel


Features

  • Ultra-powerful Capacity. DELTA Pro has a large 3600Wh battery capacity with 3600W AC output and total 15 outlets, which make it a strong home backup power station. With x-boost technology, it can power domestic appliances up to 4500W. Full charged in 1.8 hrs with 240V outlets(3000W), 2.7 hrs with 1800W wall outlets. Remember that the power station and the solar panel(s) will be shipped in separate packages.
  • High Efficiency. When paired with the generator, the 400W portable solar panel achieves optimal efficiency no matter when it rains or shines. Where solar panels are concerned, its conversion rate of 22.4%. With a single 400W panel, the large power bank gets a full recharge in 11 hours and with the 3x400W ones, it gets a full recharge in 3.5 hours.
  • Light and Durable. The 400W Solar Panel is foldable and comes with an adjustable carry case. Weighing in at only 16kg (35.3lbs), it can be easily packed up and carried with you, no matter where you go. It also comes with a IP68 Waterproof rating, meaning it is dust and water tight.
  • 15 Versatile Outputs. DELTA Pro includes 15 outlets and ports: 5 AC outlets, 4 USB-A ports, 2 USB-C ports, 2 DC ports, 1 car power output and 1 Anderson port. Power all your devices such as mobile phone, tablet, camera, radio, projector, night light, mini fan and so on.
  • Smart App Control. Use the EcoFlow app via wi-fi or bluetooth. Monitor the status of all your devices and power sources that are charging your portable power station. Check on charge level, temperature and charge/discharge times. Control from afar and customize all settings, such as battery life, input/output, and more.
  • To ensure prompt delivery, please note that the DELTA Pro Solar Generator and 400W Solar Panel will be shipped separately. If you receive one item before the other, kindly await the arrival of the remaining item.

Brand: EF ECOFLOW


Wattage: 3600 Watt-hours


Fuel Type: Non-gasoline


Power Source: Battery Powered, Solar Powered


Recommended Uses For Product: Camping, Residential


Item Weight: 99 Pounds


Voltage: 120 Volts


Output Wattage: 4500.00


Special Feature: Portable


Included Components: 400W solar panel, DELTA Pro 3600Wh Power Station, Solar Charge Cable


Brand: EF ECOFLOW


Wattage: 3600 Watt-hours


Fuel Type: Non-gasoline


Power Source: Battery Powered, Solar Powered


Recommended Uses For Product: Camping, Residential


Item Weight: 99 Pounds


Voltage: 120 Volts


Output Wattage: 4500.00


Special Feature: Portable


Included Components: 400W solar panel, DELTA Pro 3600Wh Power Station, Solar Charge Cable


Color: DELTA Pro with 400W Foldable Panel


Product Dimensions: 11.2"L x 16.4"W x 25"H


Model Name: EFD500


Engine Type: 4 Stroke


Tank Volume: 5 Gallons


Engine Displacement: 79 Cubic Centimeters


Total Power Outlets: 5


Current Rating: 12 Amps


Starting Wattage: 4500 Watts


Running Wattage: 3.6E+3 Watts


UPC: 842783147073


Manufacturer: EF ECOFLOW


Item Weight: 99 pounds


Item model number: EFD500


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 26 – Oct 1

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Electric charger
Style: DELTA Pro
This item is great to have in the house. Compared to a gas generator that could cause someone to get sick they always has to stay outside. The original cost is high. better to get it on a lower price well worth it it is very heavy heavy but it does have a handle at the bottom. Alot of hook ups on front side a d back. And you can charge it up in a house current. Last full charge for 15 days. Excellent item to have and you can. My two to hook up together for twice the a.ount of days and buy solor panels to use with it ... show more
Reviewed in the United States on August 5, 2025 by Carol Cooper Carol Cooper

  • LOVE IT! Charged up fast, holds charge and works when I needed.
Style: DELTA Pro
Already had an outage and it saved me from losing a fridge full of groceries. Easily backed up and ran a full sized fridge freezer, powered table lamp (with led bulb) charged 2 phones, powered a 4 cam security system and a 25 watt soundbar to listen to music during an 8 hour outage and still had 84% power. Could have ran a lot more, did what I needed, charged it up and ready to go. Going to add a 400w solar panel to get free power, love it! ... show more
Reviewed in the United States on September 8, 2025 by Jay

  • Best portable solar electric generator on the market.
Style: DELTA Pro
Hands down, the best out there. I've had this electric generator for 5 months now and have wheeled it to camping and star gazing. What a fantastic device. I can power 3 mosquito traps, 3 telescopes, a electric water pot for coco and still have capacity for music or charging phones. The app is a 8/10 and my only complaint is that nothing allows you to trend input/output so you can't keep an eye on your metrics. 100% support this product, will buy again. ... show more
Reviewed in the United States on August 9, 2025 by Doug

  • Good generator, but first generator received was bad and hassle to return
Style: DELTA Pro+400W Solar Panel
The first Delta Pro generator that I received didn't power any of the devices that I tried in any of the plugs, even when fully charged. Plus, the screen only came on for 1-2 secs and then it shut off. I called them twice. The first call I was told to update the firmware. I tried that, but the app said it could not connect to the unit. On the second call to them, I was told that even if the firmware was not up to date, it would not cause the generator to not power any devices. She said we have a defective unit and that they would replace it. I was told to pack up the unit, and that a return shipping label would be sent to us. I repacked, taped up, and moved this 100 lb unit to our front door. After doing all that, then I received an email saying that we needed to update the firmware and video tape everything we do and send it to them for review....and no shipping label was received. And FYI, I also had purchased the 4 year service contract. I felt like I was getting the run around even after getting the service contract. I decided to call one more time. Then, they promptly sent me a return label. They asked for a photo of the package that was ready to be shipped. Did that. Within a day of them receiving the returned unit, they sent me a new unit. This one seems to be working well. ... show more
Reviewed in the United States on March 22, 2025 by tom lloyd

  • Great investment
Style: DELTA Pro
I’m very impressed with the EF ECOFLOW Delta Pro. The 3600Wh capacity is more than enough to power my essential devices during outages, and it’s also perfect for camping trips. The fast charging is a game changer—it goes from nearly empty to full in just a few hours. I love the multiple AC outlets and USB ports, which make it easy to connect all my devices at once. It’s a bit heavy, but the built-in wheels and handle make moving it around much easier. Overall, it’s a reliable and powerful portable power station that’s worth the investment. ... show more
Reviewed in the United States on July 22, 2025 by Demieherdez

  • BUYER BEWARE - UPDATE
Style: DELTA Pro
The media could not be loaded. After finally having a chance to use this for powering my travel trailer, I am VERY disappointed in its operation. Plugging in to the 30 amp connection and powering on the 15k air conditioner and turning on a handful of various devices, after 10 minutes or so, the device shuts down with a 110 error code. It resets after 20-30 seconds and powers back on. It happens again after a similar time (I'm not running hair dryers, just usual electric devices used in every day life.). Now, every time, the air conditioner compressor has been 'on' after the obligatory initial time delay, so it's not the compressor kicking on that's tripping it. Cool air has been flowing from the vents. The AC is on AUTOMATIC, so it would have cycled off and the fan would shut down before turning back on. I had me Ecoflow app open and noticed it was putting out appx 1800 watts when it resets. I contacted Ecoflow customer service and opened a trouble ticket. The customer service representative assured me the unit would be replaced once I provided some information to verify the productto be defective. They asked what firmware was installed. I had updated the firmware already, hoping this would clear up the issue before needing to call tech support. They said to try a hard reset on the unit and gave me instructions on how to do this. I did so but the problem persisted. The next day I get an email from the technician Eric: " Thank you for reaching out. It seems that the surge power required by your air conditioner might be too high. We recommend adding a soft starter to manage the power surge effectively.". Obviously, this person never read the description I painstakingly provided to the agent. I emailed Eric that my air conditioner ALREADY had an Easy Start. The next day, Eric emailed me requesting a video showing the unit failing and to use some different devices to see if the unit would fail. I did so and sent it in, along with screenshot of the power input/output. I have a smaller secondary AC (620 watts), which I used instead of the main AC. I needed additional devices running to get to the so I plugged in a counter top oven and turned on the microwave. Took pictures and movies showing it failing again. Again, a day later I get an email saying:"Delta Pro is limited to 3600W. Your appliances has exceeded this limit, which triggers an overload. It's important to note that the Delta Pro can operate for 4-5 minutes because the power demand is gradually increasing, but it will go into overload once the 3600W threshold is surpassed.". One problem, I have an additional Ecoflow battery, which gives me 7200W of avaliable capacity. ". So, I setup ANOTHER test, keeping total watts limited under all their described limits. I take another video and screen captures and send it in. A DAY LATER, I receive this from Eric:"We are sorry about the issue you encountered. Thank you for reaching out. The output power on the left is limited to 2400W. We recommend trying the output interface on the right. If the connector is not suitable, you may need to purchase a compatible adapter connector from a third-party supplier.". Yes, the screenshot shows 2800watts input, BUT IT'S TOTAL INPUT. I have 1200watts of solar, and at that time, it was producing nearly 700watts, which brings the AC input to 2100watts, below their requested threshold. I get the distinct impression Ecoflow is trying REAL HARD, to renig on the warranty for this device. Update - I realized the technician thought I was plugging into the 15amp 110v plug on the left, but if you look at the photos and videos you can clearly see I am using the 30 amp 'RV' plug on the right. After multiple emails and phone calls to the 800 support line, they have finally come to the conclusion the unit is defective. Unfortunately for me, it took so long to get Ecoflow to agree it was bad, it was outside the 30day new replacement period. They will send a refurbished unit ... ... show more
Reviewed in the United States on March 18, 2025 by Amazon Customer Amazon Customer

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