Renpower RPMH108-400-M10
Renpower RPMH108-400-M10
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Renpower RPMH108-400-M10

Renpower RPMH108-400-M10

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Unlimited lifetime support, always available.

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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.

Renpower RPMH108-400-M10 400W PERC Monocrystalline Solar Panel

Model RPMH108-400-M10 | PERC Monocrystalline | 108 Half-Cell | Monofacial | 1500V System Voltage

400 Wp
Max Power Output
20.5%
Module Efficiency
108
PERC Half-Cells

Product Overview

The Renpower RPMH108-400-M10 400W PERC monocrystalline solar panel delivers high performance in a compact footprint. This premium module combines advanced PERC cell technology with efficient monocrystalline cells to achieve a panel efficiency of 20.5 percent. It is designed for residential, commercial, and small industrial arrays where strong power density is essential. A robust anodized aluminium frame and tempered glass front offer durable protection in harsh outdoor conditions. The panel is engineered for long term energy production with precise power tolerance from zero to plus 1.25 percent. Installers can integrate this module into new builds or retrofit projects with confidence and consistent performance. Its 108 half cell layout supports balanced output and helps improve shade resilience across the string. The RPMH108-400-M10 offers a reliable solution for customers seeking dependable solar savings and clean energy production.

Key Benefits

High power density for limited roof space: With a rated output of 400 Wp, this panel delivers strong production from a compact 1722 by 1134 millimetre size. It suits roofs where every square metre must be used efficiently.

Reliable monocrystalline PERC technology: Monocrystalline PERC cells support stable performance and better low light behaviour compared with standard polycrystalline modules. This technology helps optimise generation throughout long days and variable seasons.

Strict positive power tolerance: The power tolerance of zero to plus 1.25 percent means each module will at least meet its nameplate rating. System designers gain more predictable array power and cleaner performance estimates.

Durable construction for harsh climates: Tempered 3.2 millimetre glass, anodized aluminium framing, and an IP67 junction box help protect components from dust, moisture, and mechanical stress. The panel is rated for operation from minus 40 to 85 degrees Celsius.

Flexible system integration: With a maximum system voltage of 1500 volts and a series fuse rating of 25 amperes, the module can integrate into a range of string designs. Installers can combine many panels to build efficient high voltage arrays.

Optimised weight for easier handling: At 23 kilograms, the module balances robust construction with manageable weight. This helps teams handle transport and rooftop positioning more safely and efficiently.

How It Works

The Renpower RPMH108-400-M10 converts sunlight into usable electrical energy through high efficiency PERC monocrystalline solar cells. Each of the 108 cells is wired into strings that form the complete module and feed direct current to the system wiring. When light strikes the cell surface, electrons are freed and driven by the internal electric field, creating current. The carefully matched voltage and current at maximum power, 31.01 volts and 12.9 amperes, allow the module to operate near its 400 Wp rating under standard conditions. An IP67 junction box houses bypass diodes that help reduce losses if partial shading occurs on the panel surface. Cables preattached to the junction box connect the module into a series or parallel string, which then links to an inverter suited to a 1500 volt system. The inverter converts the direct current into alternating current for household loads or export to the grid, allowing dependable long term solar generation.

PERC monocrystalline cell conversion: Monocrystalline silicon cells use a single crystal structure that supports efficient electron flow. PERC technology adds a passivated rear surface, which reflects unused light back into the cell. This design allows more photons to be captured and turned into electrical energy. As a result, the panel reaches a module efficiency of 20.5 percent.

Module operation within the string: In a string, several panels are connected in series to raise the working voltage while keeping current similar. The module has a voltage at maximum power of 31.01 volts and an open circuit voltage of 37.07 volts. This makes it suitable for high voltage arrays up to 1500 volts system rating. Installers select the number of modules per string to keep design values within safe operating limits.

Protection and energy delivery: The IP67 rated junction box helps keep dust and water away from key electrical connections. Three integrated diodes provide bypass paths that reduce hot spots when parts of the panel are shaded. From the box, 4 square millimetre cables carry current to the rest of the array. Once the current reaches the inverter, it is converted to alternating current that can power appliances or charge storage systems.

Technical Specifications

Brand / Manufacturer Ningbo Renpower New Materials Technology Co., Ltd.
Country of Origin China
Module Type Monocrystalline PERC, monofacial
Model Number RPMH108-400-M10
Nominal Power (Pmax) 400 Wp
Power Tolerance 0 to +1.25 %
Maximum Power Voltage (Vmpp) 31.01 V
Maximum Power Current (Impp) 12.9 A
Open Circuit Voltage (Voc) 37.07 V
Short Circuit Current (Isc) 13.79 A
Module Efficiency 20.5 %
Cell Count and Size 108 monocrystalline PERC cells
Operating Temperature Range -40 °C to +85 °C
Maximum System Voltage 1500 V
Series Fuse Rating 25 A
Module Dimensions (H × W × D) 1722 × 1134 × 30 mm
Weight 23 kg
Front Glass Type Tempered glass
Front Glass Thickness 3.2 mm
Frame Material Anodized aluminium
Junction Box Protection IP67 rated junction box
Number of Diodes in Junction Box 3 bypass diodes
Cable Cross Section 4 mm²
Cable Length 300 mm

Certifications & Compliance

Certifications: Standard international safety and performance certifications typically applied to grid connected crystalline modules. Please confirm exact certificates with the manufacturer before final design.
Inverter Compatibility: Compatible with most modern string and hybrid inverters designed for 1500 V DC systems. Always check inverter datasheets to ensure voltage and current limits are respected.
Environmental: Designed for outdoor installation with IP67 junction protection and wide operating temperature range from -40 °C to 85 °C.
Warranty: Standard performance and product warranty terms are provided by Ningbo Renpower New Materials Technology Co., Ltd. Please refer to the official warranty statement for precise coverage and duration.

● Available | Contact us for lead time and pricing

Customer Reviews

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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.

Renpower RPMH108-400-M10 400W PERC Monocrystalline Solar Panel

Model RPMH108-400-M10 | PERC Monocrystalline | 108 Half-Cell | Monofacial | 1500V System Voltage

400 Wp
Max Power Output
20.5%
Module Efficiency
108
PERC Half-Cells

Product Overview

The Renpower RPMH108-400-M10 400W PERC monocrystalline solar panel delivers high performance in a compact footprint. This premium module combines advanced PERC cell technology with efficient monocrystalline cells to achieve a panel efficiency of 20.5 percent. It is designed for residential, commercial, and small industrial arrays where strong power density is essential. A robust anodized aluminium frame and tempered glass front offer durable protection in harsh outdoor conditions. The panel is engineered for long term energy production with precise power tolerance from zero to plus 1.25 percent. Installers can integrate this module into new builds or retrofit projects with confidence and consistent performance. Its 108 half cell layout supports balanced output and helps improve shade resilience across the string. The RPMH108-400-M10 offers a reliable solution for customers seeking dependable solar savings and clean energy production.

Key Benefits

High power density for limited roof space: With a rated output of 400 Wp, this panel delivers strong production from a compact 1722 by 1134 millimetre size. It suits roofs where every square metre must be used efficiently.

Reliable monocrystalline PERC technology: Monocrystalline PERC cells support stable performance and better low light behaviour compared with standard polycrystalline modules. This technology helps optimise generation throughout long days and variable seasons.

Strict positive power tolerance: The power tolerance of zero to plus 1.25 percent means each module will at least meet its nameplate rating. System designers gain more predictable array power and cleaner performance estimates.

Durable construction for harsh climates: Tempered 3.2 millimetre glass, anodized aluminium framing, and an IP67 junction box help protect components from dust, moisture, and mechanical stress. The panel is rated for operation from minus 40 to 85 degrees Celsius.

Flexible system integration: With a maximum system voltage of 1500 volts and a series fuse rating of 25 amperes, the module can integrate into a range of string designs. Installers can combine many panels to build efficient high voltage arrays.

Optimised weight for easier handling: At 23 kilograms, the module balances robust construction with manageable weight. This helps teams handle transport and rooftop positioning more safely and efficiently.

How It Works

The Renpower RPMH108-400-M10 converts sunlight into usable electrical energy through high efficiency PERC monocrystalline solar cells. Each of the 108 cells is wired into strings that form the complete module and feed direct current to the system wiring. When light strikes the cell surface, electrons are freed and driven by the internal electric field, creating current. The carefully matched voltage and current at maximum power, 31.01 volts and 12.9 amperes, allow the module to operate near its 400 Wp rating under standard conditions. An IP67 junction box houses bypass diodes that help reduce losses if partial shading occurs on the panel surface. Cables preattached to the junction box connect the module into a series or parallel string, which then links to an inverter suited to a 1500 volt system. The inverter converts the direct current into alternating current for household loads or export to the grid, allowing dependable long term solar generation.

PERC monocrystalline cell conversion: Monocrystalline silicon cells use a single crystal structure that supports efficient electron flow. PERC technology adds a passivated rear surface, which reflects unused light back into the cell. This design allows more photons to be captured and turned into electrical energy. As a result, the panel reaches a module efficiency of 20.5 percent.

Module operation within the string: In a string, several panels are connected in series to raise the working voltage while keeping current similar. The module has a voltage at maximum power of 31.01 volts and an open circuit voltage of 37.07 volts. This makes it suitable for high voltage arrays up to 1500 volts system rating. Installers select the number of modules per string to keep design values within safe operating limits.

Protection and energy delivery: The IP67 rated junction box helps keep dust and water away from key electrical connections. Three integrated diodes provide bypass paths that reduce hot spots when parts of the panel are shaded. From the box, 4 square millimetre cables carry current to the rest of the array. Once the current reaches the inverter, it is converted to alternating current that can power appliances or charge storage systems.

Technical Specifications

Brand / Manufacturer Ningbo Renpower New Materials Technology Co., Ltd.
Country of Origin China
Module Type Monocrystalline PERC, monofacial
Model Number RPMH108-400-M10
Nominal Power (Pmax) 400 Wp
Power Tolerance 0 to +1.25 %
Maximum Power Voltage (Vmpp) 31.01 V
Maximum Power Current (Impp) 12.9 A
Open Circuit Voltage (Voc) 37.07 V
Short Circuit Current (Isc) 13.79 A
Module Efficiency 20.5 %
Cell Count and Size 108 monocrystalline PERC cells
Operating Temperature Range -40 °C to +85 °C
Maximum System Voltage 1500 V
Series Fuse Rating 25 A
Module Dimensions (H × W × D) 1722 × 1134 × 30 mm
Weight 23 kg
Front Glass Type Tempered glass
Front Glass Thickness 3.2 mm
Frame Material Anodized aluminium
Junction Box Protection IP67 rated junction box
Number of Diodes in Junction Box 3 bypass diodes
Cable Cross Section 4 mm²
Cable Length 300 mm

Certifications & Compliance

Certifications: Standard international safety and performance certifications typically applied to grid connected crystalline modules. Please confirm exact certificates with the manufacturer before final design.
Inverter Compatibility: Compatible with most modern string and hybrid inverters designed for 1500 V DC systems. Always check inverter datasheets to ensure voltage and current limits are respected.
Environmental: Designed for outdoor installation with IP67 junction protection and wide operating temperature range from -40 °C to 85 °C.
Warranty: Standard performance and product warranty terms are provided by Ningbo Renpower New Materials Technology Co., Ltd. Please refer to the official warranty statement for precise coverage and duration.

● 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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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

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