400W Portable Solar Blanket (High-Voltage Series) | UT-400W
The ultimate off-grid power solution. The Sola-E UT-400W is a massive 400-watt solar blanket engineered to replace noisy gas generators. Designed for high-capacity power stations (2kWh+) and RV basecamps, it delivers industrial-grade energy in a foldable, lightweight fabric package that one person can carry.
- Massive 400W Output: Rapidly charges large battery banks and runs RV appliances.
- High-Voltage Architecture: Optimized for MPPT controllers and large solar generators (40V+ Voc).
- Ultra-Compact Blanket Design: Folds down to a fraction of the size of rigid panels.
- 50% Lighter than Glass: Weighs only ~13kg, compared to 25kg+ for rigid 400W panels.
- Anderson / MC4 Ready: Professional high-current connectors included.
Key Features
Massive 400W Energy Harvest
Stop waiting for solar. With a 400W peak output, the UT-400 significantly reduces charging time compared to connecting multiple smaller panels. It is the ultimate solution for heavy energy users.
Optimized 40V System Voltage
With a working voltage (Vmp) of 40V, the UT-400 is designed to minimize line loss and works perfectly with MPPT controllers and high-input voltage portable power stations (e.g., EcoFlow Delta Pro, Bluetti AC200).
Portable Industrial Power
Weighing 12.5kg, it strikes the perfect balance between stability and portability. The unfolded size spans nearly 3 meters (283cm) to capture maximum sunlight, yet it packs away neatly into a protective folded form.
Wide Applications

Large Capacity Power Stations
Best suited for high-capacity units (2000Wh+) that can accept higher voltage inputs (Voc 48V). Note: Please check your power station's PV input limit.

RV & Basecamp Power
Quickly top up 12V (via MPPT), 24V, or 48V battery banks. Ideal for extended off-grid camping trips where running fridges and appliances is necessary.

Home Backup Solutions
A reliable standalone power source to keep essential home circuits running during prolonged blackouts when paired with a battery system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | UT-400 |
| Peak Power (Pmax) | 400W |
| Cell Type | Mono-crystalline PERC |
| Cell Efficiency | 23% |
| Voltage at Pmax (Vmp) | 40V |
| Current at Pmax (Imp) | 10A |
| Open Circuit Voltage (Voc) | 48V |
| Short Circuit Current (Isc) | 10.8A |
| Operating Temperature | -10°C ~ 70°C |
| Temp Coefficient (Pmax) | -0.38%/°C |
| Temp Coefficient (Voc) | -0.36%/°C |
| Unfolded Size | 283.2 x 89.7 x 2.5 cm |
| Folded Size | 89.7 x 74.8 x 5.0 cm |
| Net Weight | 12.5 kg |
| Warranty | 1 Year |
Packaging & Shipping


- Heavy-Duty Packaging: Double-wall corrugated box with foam corner protection.
- Secure Palletization: Standardized pallets with strapping for safe bulk transport.
- Optimized Loading: Maximized container space efficiency for lower shipping costs.
- Professional container handling for international export.
Request Bulk Quotation
OEM support · Fast response · Factory direct pricing
FAQ (Frequently Asked Questions)
Q1: Can I charge my 12V car battery directly with this UT-400 panel?
A: No, not directly. The output voltage of this panel is approx 40V-48V, which is too high for a 12V battery. You must use an MPPT solar charge controller (compatible with 48V input) to safely step down the voltage to charge a 12V or 24V battery.
Q2: Will this panel work with my portable power station?
A: It depends on your power station’s input limit. The UT-400 has an Open Circuit Voltage (Voc) of 48V. Please check if your power station supports PV Input Voltage up to 50V or higher. It is perfect for larger units like EcoFlow Delta Pro or Bluetti AC200, but may be too powerful for small handheld power banks.
Q3: Is the panel waterproof?
A: The solar cells and fabric body carry an IP65 rating, making them resistant to water splashes and light rain. However, the junction box and connectors should be kept dry, and the panel should not be submerged in water.
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