Xunlight XRS19-158 158W 42Voc Flexible Amorphous Solar Panel RV Boat MC4

Xunlight XRS19-158 158W 42Voc Flexible Amorphous Solar Panel RV Boat MC4

The Xunlight XRS19-158 is a rollable, flexible amorphous thin-film solar panel made in Toledo, Ohio by Xunlight Corporation. It generates 158 watts at STC using 19 amorphous silicon (a-Si) cells laminated into a lightweight, pliable substrate that rolls down to approximately 12 inches in diameter for compact storage and transport. These panels carry no adhesive backing, saving roughly 3 pounds compared to peel-and-stick variants, and each sale includes a set of MC4 cables with junction box (J-Box) for straightforward DIY installation.

Specifications & What's Included

• Model: Xunlight XRS19-158
• Peak Power (Pmax): 158 Watts at STC
• Open Circuit Voltage (Voc): 42.0 V
• Short Circuit Current (Isc): 6.35 A
• Voltage at Maximum Power (Vmp): 31.7 V
• Current at Maximum Power (Imp): 5.00 A
• Cell Technology: Amorphous silicon (a-Si) thin film
• Number of cells: 19
• Panel dimensions: 18" wide × approximately 215.75" long (~18 ft)
• Rolled-up diameter: approximately 12 inches
• Backing: None (no peel-and-stick adhesive)
• Connectors: Copper tabs; MC4-compatible via included cables
• Included: MC4 cables with junction box (J-Box) for DIY installation
• Country of manufacture: United States (Toledo, Ohio)
• Condition: New — cosmetic seconds with minor lamination blemishes; electrically unused

Applications

Amorphous silicon thin-film solar panels like the XRS19-158 are well suited to portable and mobile off-grid charging because they are significantly lighter and more flexible than conventional crystalline silicon panels. Amorphous silicon also performs better than crystalline cells under diffuse, low-angle, or partially shaded light conditions, which is a practical advantage in mobile applications. The XRS19-158 is commonly used for battery charging on RVs, travel trailers, boats, sailboats, and vans — any application where a panel needs to be stored flat, rolled up, or draped over a curved surface. The rollable form factor makes it easy to carry in a storage tube or bag and deploy when needed. Xunlight Corporation produced these panels in Ohio; the factory closed in 2016, making this a finite supply of an American-made flexible solar product. These panels are compatible with standard 12V and 24V battery systems commonly found in marine and RV applications, and the included MC4 cables and J-Box allow connection to any standard charge controller.