Custom Marine | 120 Watt Walkable Semi Rigid Solar Panel with Polycarbonate & J-Mount Brackets - Sunpower A+ Grade 24.4% Efficient Cells
120 Watt Semi-Rigid Solar Panel (SunPower A+ Grade 24.4% Efficient Cells)
The 120W Semi-Rigid Solar Panel combines high efficiency, durability, and flexibility for marine, RV, and off-grid use. Featuring A+ Grade monocrystalline cells with up to 24.4% efficiency, it delivers reliable power even in low-light or partially shaded conditions. Its semi-rigid ETFE surface provides strength, corrosion resistance, and easy mounting on curved or uneven surfaces.
KEY FEATURES
- High Efficiency Performance – Built with premium SunPower A+ Grade cells delivering up to 24.4% efficiency for maximum power output.
- Walkable & Durable – Semi-rigid design allows safe walking on the panel (see the module loading considerations below).
- Shade Tolerant – Maintains reliable power generation even in partial shading from sails, rigging, or marine gear.
- Heat Dissipation Advantage – Runs cooler than standard panels, ensuring better performance in hot climates.
- Marine-Ready Construction – Built to withstand the harsh saltwater environment with corrosion-resistant materials.
- Lightweight & Compact – Thinner 4mm fiberglass backing for easy installation on rigid boat decks or vans rooftops.
- Versatile Mounting Options – Ideal for marine, van, camper, and off-grid installations where flexibility and strength are required. Includes Poly and J brackets for secure setup.
- Quiet, Clean Energy – No moving parts, zero emissions — just efficient off-grid power.
- 5-Year Warranty – Backed by Custom Marine Products’ quality guarantee.
Specifications
| Model | CMP24120SRX-P |
| Rated Power |
120 Watts |
| Peak Power Voltage (Vmpp) | 20.5 Volts |
| Peak Power Amps (Impp) | 5.9 Amps |
| Open Circuit Voltage (Voc) | 25.1 Volts |
| Short Circuit Current (Isc) | 6.3 Amps |
| Cell Conversion Efficiency | 25.4% |
| Dimensions | 20.8" x 42.1", 530 x 1070 x 4 mm |
| Weight |
8.6 lbs, 3.9 kgs |
| Background Color | White |
| Cell Layout | 3 x 12 (12 are half cells) |
| Substrate |
Lightweight Fiberglass |
| Warranty | 5 years |
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
Being an authorized retailer means we carry the same warranty as the manufacturer, protecting your purchase!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.
Frequently Asked Questions
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