Power Maxma 440
Power Maxma 440
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Power Maxma 440

Power Maxma 440

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

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In Stock

Get yours today!

truck
9+ sold

In the last 7 days

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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

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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.

Power Maxma 440 PERC Monocrystalline Solar Panel

Model Power Maxma 440 | PERC Monocrystalline | 72 Full-Cell Estimated | Monofacial | 1500V System Voltage

440 Wp
Max Power Output
19.9%
Module Efficiency
PERC
Monocrystalline Cells

Product Overview

The Power Maxma 440 PERC Monocrystalline Solar Panel delivers dependable 440 Wp performance for residential and commercial projects in the UAE and beyond. Designed around high efficiency PERC monocrystalline cells, it converts sunlight into energy with a panel efficiency up to 19.9 percent for strong yields in limited spaces. The module operates at a maximum power voltage of 41 volts and current of 10.75 amps, offering a balanced profile for modern grid tied and off grid systems. A maximum system voltage of 1500 volts allows flexible array design and reduces overall balance of system costs when used in larger installations. With a durable IP68 junction box, MC4 connectors and a robust 40 millimetre frame, the panel is engineered for harsh outdoor environments. Long term reliability is supported by a 10 year product warranty and a 25 year power warranty with an 81.4 percent guaranteed output at the end of the term. This combination of power, efficiency and durability makes it a smart choice for installers, EPCs and energy conscious property owners.

Key Benefits

High power density for limited roof space: The 440 Wp output and up to 20.4 percent efficiency enable more energy from fewer panels, ideal where roof or ground area is constrained.

Reliable long term performance: The 25 year power warranty with an 81.4 percent guaranteed output and low 0.74 percent annual degradation supports stable lifetime yields.

Optimised electrical characteristics: A maximum power voltage of 41 volts and current of 10.75 amps allows efficient string design and smooth integration with modern inverters.

Durable construction for harsh climates: The robust aluminium frame, 24 kilogram build and IP68 junction box provide strong resistance against dust, moisture and challenging weather conditions common in the region.

Easy installation and secure connectivity: Standard MC4 connectors and practical dimensions of 2108 by 1048 by 40 millimetres help simplify mounting, wiring and maintenance activities for installers.

Stable output across temperatures: Tight temperature coefficients of power, voltage and current support predictable performance under high operating temperatures, which is important in hot climates.

How It Works

This monocrystalline PERC module converts sunlight into direct current electricity through highly efficient silicon cells arranged across the 2108 millimetre length panel. When sunlight hits the cell surface, photons excite electrons and create an electric field, generating current that flows through the internal busbars and cell interconnections. The panel operates at a rated maximum power point of 440 watts under standard test conditions, with voltage stabilised around 41 volts and current near 10.75 amps. The integrated junction box collects this energy and routes it through MC4 connectors to the system cabling. From there, the power is typically fed to an inverter that converts the direct current into usable alternating current for homes, businesses or export to the grid. Thermal behaviour is controlled by precise temperature coefficients, helping to limit power losses as cell temperature rises above 44.4 degrees Celsius during real operation. Over time, material quality and careful cell processing help keep output within the guaranteed 81.4 percent level after 25 years.

Monocrystalline PERC cell conversion: Each monocrystalline cell features a passivated rear surface that reflects unabsorbed light back into the silicon, increasing the chance of photon capture and boosting conversion efficiency. The uniform crystal structure also reduces electron recombination, enabling higher power density and better energy generation under direct and diffuse light conditions.

Maximum power point operation: At 41 volts and 10.75 amps, the panel reaches its rated maximum power of 440 watts, which is where most inverters track operation using MPPT algorithms. System designers usually connect several modules in series to reach optimal string voltages while keeping within the 1500 volt system rating, maximising efficiency and reducing cable losses.

Safe wiring and protection: The IP68 rated junction box protects internal bypass diodes and electrical connections against dust and water ingress, supporting long term reliability outdoors. MC4 connectors provide secure, low resistance connections between panels and strings, while the 20 amp series fuse rating enhances safety by defining appropriate protection levels in the array design.

Technical Specifications

Module Type Monocrystalline PERC solar panel
Model Number Power Maxma 440
Nominal Power Range 430 to 450 Wp
Maximum Power (Pmax) 440 Wp
Power Tolerance 0 to +1 percent
Module Efficiency Range 19.5 to 20.4 percent
Module Efficiency (at 440 Wp) 19.9 percent
Voltage at Maximum Power (Vmpp) 41 V
Current at Maximum Power (Impp) 10.75 A
Open Circuit Voltage (Voc) 49.6 V
Short Circuit Current (Isc) 11.33 A
Maximum System Voltage 1500 V
Series Fuse Rating 20 A
Nominal Operating Cell Temperature 44.4 ± 2 °C
Temperature Coefficient of Pmax -0.36 percent per °C
Temperature Coefficient of Voc -0.28 percent per °C
Temperature Coefficient of Isc +0.05 percent per °C
Panel Dimensions (H × W × D) 2108 × 1048 × 40 mm
Weight 24 kg
Junction Box Protection Class IP68 rated junction box
Connector Type MC4 compatible connectors
Power Degradation Rate 0.74 percent per year (linear approximation)
Power Warranty End of Term Output 81.4 percent of original power at 25 years
Cell Technology PERC monocrystalline silicon
Estimated Cell Count and Layout Approximately 72 full size cells, standard layout
Seller Name Power Maxma
Country of Supply United Arab Emirates (UAE)

Certifications & Compliance

Certifications: Standard IEC and regional solar module certifications are typically supported by Power Maxma modules; please refer to the official datasheet or supplier for the exact certification list for this model.
Inverter Compatibility: Compatible with most modern grid tied and hybrid inverters supporting 1500 V DC system designs and MPPT ranges that cover 41 V module operating voltage in series strings.
Environmental: Designed for outdoor use with IP68 junction box protection and durable frame construction suitable for hot, dry and dusty environments common in the UAE market.
Warranty: 10 year product warranty against manufacturing defects and 25 year linear power warranty, guaranteeing 81.4 percent of the original output at the end of the warranty period under defined conditions.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

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.

Power Maxma 440 PERC Monocrystalline Solar Panel

Model Power Maxma 440 | PERC Monocrystalline | 72 Full-Cell Estimated | Monofacial | 1500V System Voltage

440 Wp
Max Power Output
19.9%
Module Efficiency
PERC
Monocrystalline Cells

Product Overview

The Power Maxma 440 PERC Monocrystalline Solar Panel delivers dependable 440 Wp performance for residential and commercial projects in the UAE and beyond. Designed around high efficiency PERC monocrystalline cells, it converts sunlight into energy with a panel efficiency up to 19.9 percent for strong yields in limited spaces. The module operates at a maximum power voltage of 41 volts and current of 10.75 amps, offering a balanced profile for modern grid tied and off grid systems. A maximum system voltage of 1500 volts allows flexible array design and reduces overall balance of system costs when used in larger installations. With a durable IP68 junction box, MC4 connectors and a robust 40 millimetre frame, the panel is engineered for harsh outdoor environments. Long term reliability is supported by a 10 year product warranty and a 25 year power warranty with an 81.4 percent guaranteed output at the end of the term. This combination of power, efficiency and durability makes it a smart choice for installers, EPCs and energy conscious property owners.

Key Benefits

High power density for limited roof space: The 440 Wp output and up to 20.4 percent efficiency enable more energy from fewer panels, ideal where roof or ground area is constrained.

Reliable long term performance: The 25 year power warranty with an 81.4 percent guaranteed output and low 0.74 percent annual degradation supports stable lifetime yields.

Optimised electrical characteristics: A maximum power voltage of 41 volts and current of 10.75 amps allows efficient string design and smooth integration with modern inverters.

Durable construction for harsh climates: The robust aluminium frame, 24 kilogram build and IP68 junction box provide strong resistance against dust, moisture and challenging weather conditions common in the region.

Easy installation and secure connectivity: Standard MC4 connectors and practical dimensions of 2108 by 1048 by 40 millimetres help simplify mounting, wiring and maintenance activities for installers.

Stable output across temperatures: Tight temperature coefficients of power, voltage and current support predictable performance under high operating temperatures, which is important in hot climates.

How It Works

This monocrystalline PERC module converts sunlight into direct current electricity through highly efficient silicon cells arranged across the 2108 millimetre length panel. When sunlight hits the cell surface, photons excite electrons and create an electric field, generating current that flows through the internal busbars and cell interconnections. The panel operates at a rated maximum power point of 440 watts under standard test conditions, with voltage stabilised around 41 volts and current near 10.75 amps. The integrated junction box collects this energy and routes it through MC4 connectors to the system cabling. From there, the power is typically fed to an inverter that converts the direct current into usable alternating current for homes, businesses or export to the grid. Thermal behaviour is controlled by precise temperature coefficients, helping to limit power losses as cell temperature rises above 44.4 degrees Celsius during real operation. Over time, material quality and careful cell processing help keep output within the guaranteed 81.4 percent level after 25 years.

Monocrystalline PERC cell conversion: Each monocrystalline cell features a passivated rear surface that reflects unabsorbed light back into the silicon, increasing the chance of photon capture and boosting conversion efficiency. The uniform crystal structure also reduces electron recombination, enabling higher power density and better energy generation under direct and diffuse light conditions.

Maximum power point operation: At 41 volts and 10.75 amps, the panel reaches its rated maximum power of 440 watts, which is where most inverters track operation using MPPT algorithms. System designers usually connect several modules in series to reach optimal string voltages while keeping within the 1500 volt system rating, maximising efficiency and reducing cable losses.

Safe wiring and protection: The IP68 rated junction box protects internal bypass diodes and electrical connections against dust and water ingress, supporting long term reliability outdoors. MC4 connectors provide secure, low resistance connections between panels and strings, while the 20 amp series fuse rating enhances safety by defining appropriate protection levels in the array design.

Technical Specifications

Module Type Monocrystalline PERC solar panel
Model Number Power Maxma 440
Nominal Power Range 430 to 450 Wp
Maximum Power (Pmax) 440 Wp
Power Tolerance 0 to +1 percent
Module Efficiency Range 19.5 to 20.4 percent
Module Efficiency (at 440 Wp) 19.9 percent
Voltage at Maximum Power (Vmpp) 41 V
Current at Maximum Power (Impp) 10.75 A
Open Circuit Voltage (Voc) 49.6 V
Short Circuit Current (Isc) 11.33 A
Maximum System Voltage 1500 V
Series Fuse Rating 20 A
Nominal Operating Cell Temperature 44.4 ± 2 °C
Temperature Coefficient of Pmax -0.36 percent per °C
Temperature Coefficient of Voc -0.28 percent per °C
Temperature Coefficient of Isc +0.05 percent per °C
Panel Dimensions (H × W × D) 2108 × 1048 × 40 mm
Weight 24 kg
Junction Box Protection Class IP68 rated junction box
Connector Type MC4 compatible connectors
Power Degradation Rate 0.74 percent per year (linear approximation)
Power Warranty End of Term Output 81.4 percent of original power at 25 years
Cell Technology PERC monocrystalline silicon
Estimated Cell Count and Layout Approximately 72 full size cells, standard layout
Seller Name Power Maxma
Country of Supply United Arab Emirates (UAE)

Certifications & Compliance

Certifications: Standard IEC and regional solar module certifications are typically supported by Power Maxma modules; please refer to the official datasheet or supplier for the exact certification list for this model.
Inverter Compatibility: Compatible with most modern grid tied and hybrid inverters supporting 1500 V DC system designs and MPPT ranges that cover 41 V module operating voltage in series strings.
Environmental: Designed for outdoor use with IP68 junction box protection and durable frame construction suitable for hot, dry and dusty environments common in the UAE market.
Warranty: 10 year product warranty against manufacturing defects and 25 year linear power warranty, guaranteeing 81.4 percent of the original output at the end of the warranty period under defined conditions.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing
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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.

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.

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Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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