TWELSEAVAN 400W Portable Solar Panel for Power Stations – 24% Efficient & Foldable

Powerful, Portable Solar Energy for Any Adventure

The TWELSEAVAN 400W portable solar panel is built for outdoor explorers, weekend campers, RV travelers, and anyone who wants reliable power on the go. Its foldable design packs down for easy transport, while delivering solid performance when the sun shines on your rig or campsite.

In bright sun, the system is designed to convert a large share of solar energy into usable power. The result is a practical, versatile charging solution you can rely on during off-grid trips or sudden outages. The panel’s high-clarity surface and durable construction help it stand up to the elements without compromising visibility or durability.

Fast, High-Efficiency Charging

The unit uses A+ grade monocrystalline cells with up to 24% conversion efficiency, targeting robust daytime charging. A peak output of 400W is possible under optimal sunlight, enabling your power station to refill more quickly than typical panels. The ETFE laminated case offers excellent light transmission (over 95%), helping the cells perform closer to their potential in real-world conditions.

• Up to 24% conversion efficiency for stronger energy capture
• Max 400W peak output under ideal sun
• ETFE cover with high light transmission for better performance

Flexible Compatibility and Easy Setup

Designed for hassle-free integration with popular portable power stations, the panel includes a 5-in-1 MC4 connector cable plus three DC adapters. A 9.8-foot MC4 lead provides ample reach to position the panel for optimal sun exposure, whether you’re at a campsite, in a driveway, or near your RV.

• 5-in-1 MC4 connector cable + 3 DC adapters for broad compatibility
• 9.8 ft MC4 cable for flexible placement

Portability, Setup, and Durability

Weighing 22.5 pounds, the panel folds to a compact profile of 32.3 by 29.5 inches. Four adjustable kickstands lock in place to optimize tilt and sun angle, while a magnetic handle makes transport simple. The fiberglass-reinforced construction keeps the unit sturdy without weighing you down.

• Lightweight design with a compact folded footprint
• Four adjustable kickstands for quick setup
• Magnetic carry handle for convenient transport

Rugged Outdoor Ready

The back panel employs a high-density polyester canvas for wear and dust resistance, paired with a durable ETFE laminated shell. An IP65 rating adds weather resistance, helping the panel hold up across varied outdoor conditions.

What’s included and support: 1 x TWELSEAVAN 400W solar panel, 1 x 5-in-1 MC4 connector cable, 3 x DC adapters, and a user manual. A 24-month warranty, 30-day money-back guarantee, and lifelong customer service accompany your purchase.

Important voltage note: The open-circuit voltage is 42.9V, so please ensure your device supports a voltage above this threshold before pairing with the panel.