EcoFlow · Folding bifacial (lightweight)
EcoFlow 400W Lightweight Portable Solar Panel
Solar savings: 2 panels — 10%; 3 panels — 13%; 4 panels — 15%; 5 panels — 18%. Maximum 5 panels per purchase; mix models. Panels inside kits do not count. Offers do not stack.
Based on 1 separately purchased panel after adding this selection. Final total is confirmed in your bag.
Overview & Key Strengths
Why this solar panel
The EcoFlow 400W Lightweight Portable Solar Panel trims carry weight down to 28.0 lb (12.7 kg) — over 7 lb lighter than the standard 400W folding panel — while adding an integrated rear kickstand and NextGen high-efficiency monocrystalline cells.
With a 37.1V Voc and 31.3V Vmp electrical profile, it pairs effortlessly with EcoFlow DELTA 2, DELTA 3, DELTA 2 Max, and DELTA Pro series stations without exceeding 60V MPPT limits.
- Lightweight 400W NextGen.
- TOPCon 25%, IP68.
- 3-angle stand (30–60°).
- Much lighter than the classic 400W.
- For large power stations and off-grid stays.
Spec sheet
Full specs
- Brand
- EcoFlow
- Model / MPN
- EF-FOLD-400-LW
- Type
- Folding bifacial (lightweight)
- Rated Power
- 400 W
- Connector
- XT60 (integrated cable)
- Weight
- 22.5 lb / 10.2 kg
- Folded / Panel Size
- 24.8 × 21.4 × 1.4 in / 63.0 × 54.4 × 3.6 cm (folded)
- Cell Chemistry
- High-Efficiency Monocrystalline Silicon
- Cell Efficiency
- Up to 23% – 25%
- Open Circuit Voltage (Voc)
- 37.1 V
- Max Operating Voltage (Vmp)
- 31.3 V
- Short Circuit Current (Isc)
- 13.79 A
- Max Operating Current (Imp)
- 12.79 A
- Panel Weight
- 28.0 lb (12.7 kg)
- Weather Resistance
- IP68 Waterproof & Dustproof
- Compatible Stations
- EcoFlow DELTA 2, DELTA 3, DELTA 2 Max, DELTA Pro, DELTA Pro 3
Estimated full-sun charge time
- Small station (300 Wh)
- ~1.5 h
- Mid station (1,000 Wh)
- ~4 h
- Large station (2,000 Wh)
- ~8.5 h
0–100% estimate for one panel in strong, direct sun with good angle. Clouds, haze, shade, and the station's own solar-input limit will slow this down in practice.
In action
Reference setups & field deployment
EcoFlow 400W Lightweight Solar Panel in backyard backup setup
Delivers 400W of solar input with an integrated rear kickstand and lighter composite backing.
Four-section 400W lightweight TOPCon array
Weighs only 22.5 lb (10.2 kg) with up to 25% cell conversion efficiency.
Integrated rear kickstand & quick-fold design
Built-in carry handle and rear leg stands make positioning a 400W array fast and manageable.
Highlights
Why it's worth it
- Lightweight 28.0 lb (12.7 kg) composite construction with built-in rear kickstands
- 37.1V Voc / 31.3V Vmp electrical curve compatible with 60V and 150V MPPT inputs
- IP68 waterproof and dustproof ETFE surface coating
- Includes Solar-to-XT60i cable for automatic 15A current negotiation on EcoFlow stations
In the box
What's included
- EcoFlow 400W Lightweight Portable Solar Panel
- Solar to XT60i Charging Cable
- Protective Storage Case
- Quick Start Guide & Warranty Card
