Search  for anything...
EF ECOFLOW

EF ECOFLOW Solar Generator DELTA 3 Plus with 400W Solar Panel, 1024Wh 1800W

  • Based on 62 reviews
Condition: New
Checking for the best price...
$1,119.00 Why this price?
Save $340.00 was $1,459.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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

View our full returns policy here.

Availability: Only 10 left in stock, order soon!
Fulfilled by EcoFlow Inc.
Arrives Thursday, Dec 3
Order within 19 hours and 22 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: DELTA 3 Plus with 400W


Features

  • 5 Fast Charging Options. With 1500W AC input, it charges to 80% in 40 mins. Solar charging reaches 80% in 1 hr, 100% in 70 mins. The 800W Alternator charges to 80% in 1 hr, 100% in 1.3 hrs. EcoFlow smart generator charges to 80% in 40 mins, 100% in 56 mins. Hybrid (AC + solar) charging also reaches 80% in 40 mins, 100% in 56 mins.
  • Durable and Reliable for 10 Years. Powered by LiFePO4 (LFP) cells, with 4000 cycles to 80%, offering 25% more durability than industry standards. Enjoy a 10-year lifespan for daily use. The IP65 battery pack provides triple protection: splash-proof, dust-proof, and oil-proof.
  • Weather Proof. This 400W solar panel is built to withstand the elements. Its made from layers of flexible EVA and tough fibreglass to ensure durability and mobility. It also comes with a IP68 Waterproof rating, meaning it is dust and water tight.
  • Astonishing Efficiency. When paired with an EcoFlow power station, the 400W solar panel utilises the MPPT algorithm to achieve optimal efficiency rain or shine. Where solar panels are concerned, its conversion rate of 22.4% is astonishing.
  • Power 13 Appliances Simultaneously. With abundant interfaces, it powers 13 appliances at once, perfect for emergencies. X-Boost supports resistive appliances with power demands over 2600W continuously.

Description

Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Brand: EF ECOFLOW


Wattage: 1024 watts


Fuel Type: Electric


Power Source: Solar Powered


Recommended Uses For Product: Camping, Home Backup, RV


Item Weight: 62.9 pounds


Voltage: 120 volts_of_alternating_current


Output Wattage: 1800


Special Feature: Solar Powered Generator


Included Components: EcoFlow DELTA3 Plus


Wattage: 1024 watts


Fuel Type: Electric


Power Source: Solar Powered


Recommended Uses For Product: Camping, Home Backup, RV


Voltage: 120 volts_of_alternating_current


Output Wattage: 1800


Additional Features: Solar Powered Generator


Engine Type: Solar


Total Power Outlets: 13


Engine Power Maximum: 1800 watts


Starting Wattage: 1800 watts


Running Wattage: 1800 watts


Runtime: 40 minutes


Item Weight: 62.9 pounds


Item Dimensions L x W x H: 16"L x 8"W x 11"H


Brand Name: EF ECOFLOW


Included Components: EcoFlow DELTA3 Plus


Model Name: DELTA 3 Plus Solar Generator


Model Number: EF-DL-H10-4


Item Highlight: LFP(LiFePO4) Battery, 1800W AC/140W USB-C Output, Portable Power Station for Home Backup Power, Camping & RVs


UPC: 842783143181


Manufacturer: EcoFlow


Item Type Name: power-generators


Manufacturer Part Number: EF-DL-H10-4


Warranty Description: 5-Year


Color: silver


Material Type: Fibreglass, Plastic/Rubber, Steel/Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 3

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Perfect fit
Style: DELTA 3 Plus with 400W
The EcoFlow Delta 3 Plus with 400W solar panels really a handy setup. I had an issue with the first unit, but customer service resolved it quickly and made the whole process easy. The replacement works great--itcharges fast, has plenty of power for any emergencies and will run my computer, CPAP and mini fridge. The solar panel makes recharging simple, and the unit is easy to use and not too bulky. They even gave me a 45W solar panel for my troubles with the first unit. I highly recommend this company; they've created a versatile, dependable investment for anyone seeking, portable power for peace of mind. ... show more
Reviewed in the United States on September 25, 2026 by Tom Rutledge
    • A Top-Tier Portable Power Solution!
Style: DELTA 3 Plus with 400W
Here's my honest review! The EF ECOFLOW DELTA 3 Plus with 400W Solar Panel is hands down one of the most impressive solar generators I’ve used. Whether you're prepping for emergencies or need portable power for camping or RV life, this system delivers. The 1000W solar input is a game-changer — paired with the included 400W panel, it charges surprisingly fast even in partial sunlight. I love that it uses an LFP (LiFePO4) battery, which means long-term durability, more charge cycles, and greater safety compared to traditional lithium-ion. The build quality is outstanding — solid, compact for the power it holds, and easy to move around with the built-in handles. The output options are versatile, with plenty of AC outlets, USB ports, and a car socket, making it easy to power everything from a CPAP machine to a fridge or laptop. Pros: *Fast solar charging with 1000W input (400W panel included) *Durable and safe LFP battery (long cycle life) *Great for home backup, outdoor use, or travel *Quiet operation and intuitive display * Wide range of output ports for multiple devices * Solid construction, reliable performance Cons: ➖ A bit heavy, but expected for this capacity ➖ Pricey — but you get top-tier features and battery life ... show more
Reviewed in the United States on August 19, 2025 by Phat Cat Design
    • Awesome!!
Style: DELTA 3 Plus with 400W
I took this on a 6 day camping trip because I use a cpap machine and wanted to be able to run it without a generator. I tested before camping and using the heated tube and humidifier i got 2 nights off it. I was happy. While camping however I turned off the heated tube and humidifier and got 4 yes you read that right 4 nights and I charged the phone. The 400 watt solar panel charged the unit in a cpl hours. My friend that has a bluetti said he would be getting one of these in the future. This is 1 happy camper. ... show more
Reviewed in the United States on June 27, 2026 by Fairy Mary
    • Easy to use and funvtions as described
Style: DELTA 3 Plus with 400W
This unit functions well for someone looking to power simple things like lights or cell phone chargers.
Reviewed in the United States on September 4, 2026 by Stacey Dillon
    • Exactly what they tell you!
Style: DELTA 3 Plus with 400W
Review Image by Mario Concepción
I love it. I tried it with my fridge, the sump pump, a light, my phone, we used the blender, and it was running perfectly. The panel was charging it at a 142W on a cloudy day.
Reviewed in the United States on June 28, 2026 by Mario Concepción
    • This is a very reliable and responsive seller.
Style: DELTA 3 Plus with 400W
This is the 2nd. item I've purchased from Ecoflow. The ease of use with the 1st. smaller power source (River2) led me to buy this larger one. Also the River 2 is very reliable. The only downside for me is the shipper, Fedex, they use. They leave my packages in my driveway rather than bring them to my front porch. The solar panel was too bulky and heavy for me to carry so it sits in my shed waiting for my daughter to visit and bring it in the house for me. ... show more
Reviewed in the United States on July 23, 2026 by Amazon Customer
    • First year started out great, but now not so much.
Style: DELTA 3 Plus with 400W
Got this bundle during October sales of 24 & it worked as advertised for a year, so I took the opportunity to get the battery expansion in October of 25 sale season. Within a month of getting the expansion it started acting up & saying it was getting low voltage & not wanting to charge, but it seemed to pull out of it after a firmware update. Then about 2 months after that I looked at the expansion battery light not being lit up & checked the unit, 0% battery level & goes black the second you pull the AC cord. Started emailing with EF CS & they ran me through various troubleshooting solutions... At a clip of at least 2-3 days between replies & none of them would work, so they finally offered a refurb unit that will still carry the original warranty... It's been almost 2 weeks since they said they'd get back to me shortly with a printable shipping label. The generator looks great & has better app & options than the Jackery I have, but the Jackery has never failed to deliver me power when I need it, which is far more important than bells & whistles. If anyone ever asks me about which solar generator to get, I'll tell them someone other than EcoFlow that's for sure. ... show more
Reviewed in the United States on May 19, 2026 by KCL655321
    • Great device
Style: DELTA 3 Plus with 400W
Quite a impressive unit. Does more than expected.
Reviewed in the United States on May 15, 2026 by RITA G SCHMIDT

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...