The EcoFlow Solar400W is a 400W portable solar panel built around high-efficiency 22.4% monocrystalline cells. At 400W it’s EcoFlow’s highest single-panel output, charging a DELTA Pro from 0-80% in about 1.5 hours of strong sun. The self-supporting kickstand adjusts for optimal sun angle, IP68 waterproofing handles rain and dust, and the one-piece folding design sets up in minutes — ideal for off-grid cabins, emergency backup, and basecamp power.
Features
- 400W rated output — EcoFlow’s highest single-panel capacity
- 22.4% monocrystalline silicon efficiency
- IP68 waterproof and dustproof rating
- Self-supporting adjustable kickstand — no separate mount needed
- One-piece folding design for fast setup and pack-down
- Durable multi-layered materials
- XT60i to solar connector cable included
- Compatible with EcoFlow DELTA and RIVER power station series
What’s in The Box
- EcoFlow 400W Portable Solar Panel
- XT60i Charging Cable
- Protective Bag
- Warranty Card
- Owner’s Manual
Warranty
- 1 Year Limited Factory Warranty
- 30 Day Satisfaction Guaranteed
Specifications
| SKU | Solar400W |
|---|---|
| Brand | EcoFlow |
| Rated Power | 400W |
| Cell Type | Monocrystalline Silicon |
| Efficiency | 22.4% |
| Open Circuit Voltage | 48V (Vmp 41V) |
| Short Circuit Current | 11A (Imp 9.8A) |
| Dimensions (Unfolded) | 42.0 x 94.1 x 1.0 in (106.8 x 239.0 x 2.4 cm) |
| Weight (Panel) | 35.3 lbs (16.0 kg) |
| Weight (with Case) | 41.9 lbs (19.0 kg) |
| IP Rating | IP68 |
| Connector | XT60i (cable included) |
Frequently Asked Questions
What EcoFlow power stations is the Solar400W compatible with?
It connects to any EcoFlow DELTA or RIVER series power station via the included XT60i cable, including the DELTA 2, DELTA 2 Max, DELTA Pro, and DELTA Pro Ultra.
How fast will it charge a DELTA Pro?
In optimal sun conditions, a single 400W panel can charge the DELTA Pro (3600Wh) from 0 to 80% in approximately 7-8 hours; pairing two panels cuts that roughly in half.
Can I use it in rain?
Yes — the IP68 rating means it’s fully protected against dust ingress and water submersion, so light rain and splashing won’t damage it.
How does this compare to the 220W bifacial panel?
The Solar400W produces nearly double the power of the EFSOLAR220W-N but is larger and heavier — ideal when output per setup matters more than portability.
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