Home
On Sale
Maxeon Solar SPR-MAX3-400- COM

In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

Trusted by 1,000s of Contractors & Installers

In Stock

SKU PES-SPS-SOL-12465

Maxeon Solar SPR-MAX3-400- COM

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

Quantity

Secure Payment Methods

In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

Request a Free Quote

Got Questions? We’re Here to Help!

Our support team is ready to assist you with product guidance, order details, or any questions you might have.

(888) 876-0007

Instant Live Chat

Mon-Fri 10am-6pm EST

View full details

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Maxeon Solar SPR-MAX3-400 380–400W Back Contact Solar Panel

Model SPR-MAX3-400-COM | Back Contact | 104 Cell Monocrystalline | Residential | 1000V System Voltage

400 W

Max Power Output

21.5%

Module Efficiency

104 Cells

Back Contact

Product Overview

The Maxeon Solar SPR-MAX3-400-COM is a premium residential module built for lasting output and dependable performance. It uses proven back contact technology to improve energy capture across daily conditions. The panel is designed to maximize generation in limited roof space while supporting long-term savings. Its 104-cell layout, strong construction, and high-efficiency design make it ideal for homeowners seeking reliable solar investment. This model is engineered for excellent performance in high temperatures and low-light conditions. It also includes an industry-leading warranty structure for added peace of mind.

Key Benefits

High Efficiency Design: Delivers up to 21.5% efficiency for strong energy production in residential spaces.

Back Contact Technology: Improves power capture by reducing front-side losses and supporting better aesthetics.

Excellent Heat Performance: Performs well in hot climates with a low temperature coefficient of -0.27%/°C.

Low-Light Reliability: Maintains strong output when sunlight levels are reduced during mornings or cloudy weather.

Long-Term Warranty Support: Backed by 40-year product warranty and a 30-year performance warranty profile.

How It Works

This Maxeon Solar panel converts sunlight into usable electricity through advanced monocrystalline back contact cell technology. The rear-contact architecture reduces front-side shading losses and helps the module extract more energy from each ray of sunlight. Its anti-reflection tempered glass further improves light intake, while the robust cell construction helps protect against stress from weather and thermal cycling. The panel is designed to operate efficiently across a wide temperature range. It can be connected into a standard solar array and supports stable power delivery for residential systems. Over time, the low annual degradation rate helps preserve output and long-term value.

Back Contact Cell Operation: Electrical contacts are placed on the rear side of the cell. This helps reduce front-side obstruction and supports cleaner light capture.

Heat and Shade Response: The module is engineered for strong performance in high temperatures and partial shade. This improves energy yield in real-world conditions.

System Integration: The panel supports standard residential string setups with MC4 connectors and a 1000V maximum system voltage. This makes installation straightforward for compatible systems.

Technical Specifications

Model Number	SPR-MAX3-400-COM
Brand	Maxeon Solar Technologies, Ltd.
Country	Singapore
Technology	Back Contact
Cell Technology	Monocrystalline Maxeon Gen III
Cell Count	104 Cells
Power Range	380 to 400 Wp
Maximum Power Output	400 W
Panel Efficiency	Up to 21.5%
Power Tolerance	0 to +5%
Operating Temperature Range	-40°C to 85°C
Temperature Coefficient of Pmax	-0.27%/°C
Temperature Coefficient of Voc	-0.236%/°C
Temperature Coefficient of Isc	0.058%/°C
Maximum System Voltage	1000 V
Series Fuse Rating	20 A
Dimensions	1690 x 1046 x 40 mm
Weight	19 kg
Glass Type	Anti-reflection Coating, Tempered Glass
Frame Type	Anodized Aluminium
Junction Box	IP68, 3 Diodes
Connector Type	MC4
Cable Length	1200 mm
Solar Cells	104 Monocrystalline Maxeon Gen III
Wind Load	2400 Pa
Snow Load	5400 Pa

Certifications & Compliance

Certifications: IEC 61215, IEC 61730, ISO 9001:2015, ISO 14001:2015, IEC 62716, IEC 60068-2-68, MIL-STD-810G
Inverter Compatibility: Compatible with standard residential string inverter systems within 1000V design limits
Environmental: Built for hot climates, low-light conditions, hail resistance, and strong mechanical loading performance
Warranty: 40-year product warranty and 30-year power warranty, with 15 years at 94.5% and 30 years at 90.75% output retention

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Maxeon Solar SPR-MAX3-400 380–400W Back Contact Solar Panel

Model SPR-MAX3-400-COM | Back Contact | 104 Cell Monocrystalline | Residential | 1000V System Voltage

400 W

Max Power Output

21.5%

Module Efficiency

104 Cells

Back Contact

Product Overview

Key Benefits

High Efficiency Design: Delivers up to 21.5% efficiency for strong energy production in residential spaces.

Back Contact Technology: Improves power capture by reducing front-side losses and supporting better aesthetics.

Excellent Heat Performance: Performs well in hot climates with a low temperature coefficient of -0.27%/°C.

Low-Light Reliability: Maintains strong output when sunlight levels are reduced during mornings or cloudy weather.

Long-Term Warranty Support: Backed by 40-year product warranty and a 30-year performance warranty profile.

How It Works

Back Contact Cell Operation: Electrical contacts are placed on the rear side of the cell. This helps reduce front-side obstruction and supports cleaner light capture.

Heat and Shade Response: The module is engineered for strong performance in high temperatures and partial shade. This improves energy yield in real-world conditions.

System Integration: The panel supports standard residential string setups with MC4 connectors and a 1000V maximum system voltage. This makes installation straightforward for compatible systems.

Technical Specifications

Model Number	SPR-MAX3-400-COM
Brand	Maxeon Solar Technologies, Ltd.
Country	Singapore
Technology	Back Contact
Cell Technology	Monocrystalline Maxeon Gen III
Cell Count	104 Cells
Power Range	380 to 400 Wp
Maximum Power Output	400 W
Panel Efficiency	Up to 21.5%
Power Tolerance	0 to +5%
Operating Temperature Range	-40°C to 85°C
Temperature Coefficient of Pmax	-0.27%/°C
Temperature Coefficient of Voc	-0.236%/°C
Temperature Coefficient of Isc	0.058%/°C
Maximum System Voltage	1000 V
Series Fuse Rating	20 A
Dimensions	1690 x 1046 x 40 mm
Weight	19 kg
Glass Type	Anti-reflection Coating, Tempered Glass
Frame Type	Anodized Aluminium
Junction Box	IP68, 3 Diodes
Connector Type	MC4
Cable Length	1200 mm
Solar Cells	104 Monocrystalline Maxeon Gen III
Wind Load	2400 Pa
Snow Load	5400 Pa

Certifications & Compliance

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

//www.portlandiaelectric.supply/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12.gif

Prepare for Anything

From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.

Solar Power Made Easy

Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.

Secure Your Independence

Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.

Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

Coll A