Sohigh Solar Technology Sohigh SP-540MH
Sohigh Solar Technology Sohigh SP-540MH
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Sohigh Solar Technology Sohigh SP-540MH

Sohigh Solar Technology Sohigh SP-540MH

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In Stock

Get yours today!

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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.

Sohigh Sohigh SP-540MH 540W PERC Monocrystalline Solar Panel

Model Sohigh SP-540MH | PERC | 144 Cells Monocrystalline | Monofacial | 1500V System Voltage

540 Wp
Max Power Output
20.9%
Module Efficiency
144 Cells
N-Type TOPCon

Product Overview

The Sohigh Sohigh SP-540MH 540W PERC monocrystalline solar panel is engineered for high efficiency and reliable long term performance in modern solar systems. This advanced module combines 540 Wp maximum power with 20.9 percent panel efficiency to help achieve strong energy yields from limited roof or ground space. Its monocrystalline PERC cell design supports excellent low light behavior and stable output throughout the day. The panel is manufactured by Sohigh Solar Technology Co., Ltd in China, a specialist in utility scale and commercial photovoltaic products. Durable construction and optimized electrical characteristics make this module suitable for residential, commercial, and industrial installations. A 10 year product warranty and long term power warranty provide added confidence in the panel’s ongoing output. With 144 high quality cells and precise power tolerance, energy harvest can be planned with accuracy. The Sohigh SP-540MH solar panel is an attractive choice for buyers seeking dependable 540W performance with a balanced mix of efficiency, reliability, and value.

Key Benefits

High 540W power class: Each module delivers up to 540 Wp, supporting powerful arrays with fewer panels per system layout.

Excellent module efficiency: With 20.9 percent efficiency, more electricity is produced from the same surface area compared with many standard modules.

Reliable long term output: A total degradation rate of only 0.8 percent per year helps maintain strong power production over the panel lifetime.

Tight positive power tolerance: The 0 to plus 0.5 percent power tolerance ensures that real world output meets or slightly exceeds the nameplate rating.

Engineered for diverse climates: Optimized temperature coefficients reduce performance losses in hot conditions and support stable energy production across seasons.

Versatile system integration: Well balanced voltage and current ratings simplify matching with modern inverters and mounting layouts in many project types.

How It Works

The Sohigh SP-540MH solar panel converts sunlight into usable direct current power through high performance PERC monocrystalline cells. When light hits the 144 cells, electrons are activated and an electric current is generated across the cell structure. This current is collected through the module’s busbars and directed to the junction box, where it flows as DC power toward the inverter. The inverter then transforms this DC electricity into alternating current suitable for on site loads or grid export. With 540 Wp maximum power and carefully engineered voltage and current values, the panel operates efficiently across a wide range of system sizes. Stable performance is supported by low power degradation and optimized temperature coefficients, which help maintain output during hot or variable weather. The result is a consistent flow of renewable electricity that can be used to lower energy bills and reduce reliance on conventional power sources.

PERC monocrystalline cell conversion: Passivated emitter and rear cell technology enhances light capture and internal reflection within each monocrystalline cell. This design increases the amount of electricity produced from incoming sunlight and supports the panel’s high 20.9 percent efficiency.

Optimized electrical operating point: At maximum power, the module operates around 41.62 volts and 12.98 amps, delivering its 540 Wp rating under standard conditions. These values allow inverters to track the panel’s maximum power point effectively and extract the highest possible energy yield.

System level energy delivery: When several panels are wired in series and parallel, array voltage and current are built to match inverter requirements. The module’s 49.55 volt open circuit voltage and 13.89 amp short circuit current assist safe system design while supporting efficient DC to AC conversion downstream.

Technical Specifications

Module Type Monocrystalline PERC solar panel
Model Number Sohigh SP-540MH
Manufacturer Sohigh Solar Technology Co., Ltd
Country of Origin China
Maximum Power (Pmax) 540 Wp
Panel Efficiency 20.9 %
Power Tolerance 0 ~ +0.5 %
Total Degradation Rate 0.8 %
Voltage at Maximum Power (Vmpp) 41.62 V
Current at Maximum Power (Impp) 12.98 A
Open Circuit Voltage (Voc) 49.55 V
Short Circuit Current (Isc) 13.89 A
Cell Technology PERC
Cell Type and Count 144 monocrystalline cells
Module Dimensions (H x W x D) 2279 x 1134 x 35 mm
Temperature Coefficient of Pmax -0.35 %/°C
Temperature Coefficient of Voc -0.276 %/°C
Temperature Coefficient of Isc 0.046 %/°C
Panel Type Monofacial module
Recommended System Voltage 1500 V DC system design

Certifications & Compliance

Certifications: Industry standard IEC and ISO certifications are typically met for this class of module. Please confirm with the latest manufacturer documentation for project specific needs.
Inverter Compatibility: Compatible with most modern string and central inverters when arrays are designed within voltage and current limits.
Environmental: Designed for outdoor rooftop and ground mount use with weather resistant encapsulation and framing. Final environmental ratings should be checked in current datasheets for site compliance.
Warranty: 10 year product warranty plus power warranty of 10 years at 90 percent output and 25 years at 80 percent output, based on a total degradation rate of 0.8 percent per year.

● 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.

Sohigh Sohigh SP-540MH 540W PERC Monocrystalline Solar Panel

Model Sohigh SP-540MH | PERC | 144 Cells Monocrystalline | Monofacial | 1500V System Voltage

540 Wp
Max Power Output
20.9%
Module Efficiency
144 Cells
N-Type TOPCon

Product Overview

The Sohigh Sohigh SP-540MH 540W PERC monocrystalline solar panel is engineered for high efficiency and reliable long term performance in modern solar systems. This advanced module combines 540 Wp maximum power with 20.9 percent panel efficiency to help achieve strong energy yields from limited roof or ground space. Its monocrystalline PERC cell design supports excellent low light behavior and stable output throughout the day. The panel is manufactured by Sohigh Solar Technology Co., Ltd in China, a specialist in utility scale and commercial photovoltaic products. Durable construction and optimized electrical characteristics make this module suitable for residential, commercial, and industrial installations. A 10 year product warranty and long term power warranty provide added confidence in the panel’s ongoing output. With 144 high quality cells and precise power tolerance, energy harvest can be planned with accuracy. The Sohigh SP-540MH solar panel is an attractive choice for buyers seeking dependable 540W performance with a balanced mix of efficiency, reliability, and value.

Key Benefits

High 540W power class: Each module delivers up to 540 Wp, supporting powerful arrays with fewer panels per system layout.

Excellent module efficiency: With 20.9 percent efficiency, more electricity is produced from the same surface area compared with many standard modules.

Reliable long term output: A total degradation rate of only 0.8 percent per year helps maintain strong power production over the panel lifetime.

Tight positive power tolerance: The 0 to plus 0.5 percent power tolerance ensures that real world output meets or slightly exceeds the nameplate rating.

Engineered for diverse climates: Optimized temperature coefficients reduce performance losses in hot conditions and support stable energy production across seasons.

Versatile system integration: Well balanced voltage and current ratings simplify matching with modern inverters and mounting layouts in many project types.

How It Works

The Sohigh SP-540MH solar panel converts sunlight into usable direct current power through high performance PERC monocrystalline cells. When light hits the 144 cells, electrons are activated and an electric current is generated across the cell structure. This current is collected through the module’s busbars and directed to the junction box, where it flows as DC power toward the inverter. The inverter then transforms this DC electricity into alternating current suitable for on site loads or grid export. With 540 Wp maximum power and carefully engineered voltage and current values, the panel operates efficiently across a wide range of system sizes. Stable performance is supported by low power degradation and optimized temperature coefficients, which help maintain output during hot or variable weather. The result is a consistent flow of renewable electricity that can be used to lower energy bills and reduce reliance on conventional power sources.

PERC monocrystalline cell conversion: Passivated emitter and rear cell technology enhances light capture and internal reflection within each monocrystalline cell. This design increases the amount of electricity produced from incoming sunlight and supports the panel’s high 20.9 percent efficiency.

Optimized electrical operating point: At maximum power, the module operates around 41.62 volts and 12.98 amps, delivering its 540 Wp rating under standard conditions. These values allow inverters to track the panel’s maximum power point effectively and extract the highest possible energy yield.

System level energy delivery: When several panels are wired in series and parallel, array voltage and current are built to match inverter requirements. The module’s 49.55 volt open circuit voltage and 13.89 amp short circuit current assist safe system design while supporting efficient DC to AC conversion downstream.

Technical Specifications

Module Type Monocrystalline PERC solar panel
Model Number Sohigh SP-540MH
Manufacturer Sohigh Solar Technology Co., Ltd
Country of Origin China
Maximum Power (Pmax) 540 Wp
Panel Efficiency 20.9 %
Power Tolerance 0 ~ +0.5 %
Total Degradation Rate 0.8 %
Voltage at Maximum Power (Vmpp) 41.62 V
Current at Maximum Power (Impp) 12.98 A
Open Circuit Voltage (Voc) 49.55 V
Short Circuit Current (Isc) 13.89 A
Cell Technology PERC
Cell Type and Count 144 monocrystalline cells
Module Dimensions (H x W x D) 2279 x 1134 x 35 mm
Temperature Coefficient of Pmax -0.35 %/°C
Temperature Coefficient of Voc -0.276 %/°C
Temperature Coefficient of Isc 0.046 %/°C
Panel Type Monofacial module
Recommended System Voltage 1500 V DC system design

Certifications & Compliance

Certifications: Industry standard IEC and ISO certifications are typically met for this class of module. Please confirm with the latest manufacturer documentation for project specific needs.
Inverter Compatibility: Compatible with most modern string and central inverters when arrays are designed within voltage and current limits.
Environmental: Designed for outdoor rooftop and ground mount use with weather resistant encapsulation and framing. Final environmental ratings should be checked in current datasheets for site compliance.
Warranty: 10 year product warranty plus power warranty of 10 years at 90 percent output and 25 years at 80 percent output, based on a total degradation rate of 0.8 percent per year.

● 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

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