120 Watt Rigid Marine Solar Panel - Sunpower A+ Grade 24.4% Efficient Cells

$549.00
$549.00
Shipping calculated at checkout.
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120 Watt Rigid Marine Solar Panel - Sunpower A+ Grade 24.4% Efficient Cells

Ideal for Top-of-Pole, Arch & Davit Mounts

Get reliable off-grid power on the water with our 120 Watt Rigid Marine Solar Panel, designed using premium SunPower A+ Grade monocrystalline solar cells for an outstanding 24.4% efficiency rate — among the highest available today.

This marine-grade solar panel will perform extremely well in both full and partial sun, making it perfect for boats, yachts, and sailboats operating under varied weather conditions. Built to withstand saltwater, UV exposure, and vibration, it’s crafted with corrosion-resistant aluminum framing and tempered glass for long-term durability in harsh marine environments.

Ideal for 12V systems, this 120W rigid panel is perfectly suited for top-of-pole, arch, or dinghy davit mounting, providing a steady charge to batteries for navigation systems, lighting, and onboard electronics.

✅ Ships Next Day UPS Ground from Denver or Michigan.

Key Features

⚡ High Efficiency Output – SunPower A+ Grade monocrystalline cells deliver superior power density and performance.
⚡ Marine-Grade Durability – Rigid aluminum frame and tempered glass construction resist saltwater corrosion and impact.
⚡ Versatile Mounting Options – Designed for top-of-pole, arch, or dinghy davit mounting on boats and yachts.
⚡ Perfect for 12V Battery Systems – Efficient charging for off-grid marine and van applications.

Specifications

120 Watt Rigid Marine Solar Panel
🔧 Model CMP22110S-120
⚡ Rated Power 120 Watts
🔋 Peak Power Voltage (Vmpp) 19.6 Volts
🔋 Peak Power Amps (Impp) 6.1 Amps
⚡ Open Circuit Voltage (Voc) 23.1 Volts
⚡ Short Circuit Current (Isc) 6.5 Amps
🌞 Cell Conversion Efficiency 24.4%
📏 Dimensions 21.3" x 41.7", 540mm x 1060mm
⚖️ Weight 14.3 lbs, 6.5 kgs
🔲 Background Color White
🧩 Cell Layout 4 x 8
🛡️ Warranty 5 years

 

  • 5 stars: 8 (100%)
  • 4 stars: 0 (0%)
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This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
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Michael Gillingham
Great Products and great service.

We are the second owners of a Seaward 32RK. The original owners had installed semi rigid solar to the bimini that failed. I spent a long time searching for rigid panels that would fit our boat. Then I came upon Custom Marine Products and saw that they offered the 175W rigid panels. These are ~3'X3' and would fit perfectly above the bimini. Tom Sr. and Tom Jr. were both great to deal with. They helped me get it figured out and had everything I needed to purchase at a fair price. The panels are excellent! They put out everything they should and are very high quality. I couldn't be happier with them. Now we never worry about our house batteries being topped off. If I have a question to this day, they still remember me when I call. I highly recommend their business to anyone I meet. Thanks guys!

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Bruce M.
Great product and wonderful support

Someone answered the phone everytime we called and always had answers. provided everything we needed for a complete installation. We contracted a professional marine installer and she says this is the best supplier she has ever worked with.

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Peter M.
Incredibly fast shipping

Haven't installed it on the boat yet but this a substantial solar panel. Incredibly fast shipping. Also got the regulator and the wiring. I am good to go!

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Maciej Laskowski
Great product, great support

I wanted to replace my then solar panel installation of 300W with a more powerful set up. I chose set of four CMP22200S panels for a combine power of 800W. During this selection process I'd got a great support and advice from Tom. After re-working my solar arch and installing those new panels I could not be more please with their quality and performance. They are capable to supply their nominal power of 800W as per their specs and maintain my battery fully charged during a day. Great product with outstanding support.

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Mark James
Great advice, great products, great people!

Tom Sr. Worked with me on a solar installation last Spring. I sized (2)200 mono crystalline rigid Sun Power panels with victron mppt and battery monitor. The spreadsheet he created to figure out solar needs is the best I have seen. Love this system! My wife and I spent the summer on the Great Lakes and other than a very old refrig/feeezer compressor the panels kept up with all systems including our autopilot!

The best ting about Tom (and his son Tom) is that they truly want the best solution, not the sale. Most knowledge in marine solar I have come across and while the products aren’t cheap they are priced fairly for being some of the most premiere solutions available. And the after sales service is spectacular. We heartily recommend them and will use them again as the need arises. Thanks Tom!

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Mark M.
Great customer service

Great customer service and communication.

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Philippe F.
Great customer service

Shipping was timely and panels arrived on time.

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