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SunMaster 580

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SunMaster SM12-580 580–605W PERC Monocrystalline Solar Panel

Model SM12-580~605W(120) | PERC Monocrystalline | 120 Half-Cell | Monofacial | 1500V System Voltage

580–605W

Max Power Output

Up to 21.38%

Module Efficiency

120 Cells

PERC Monocrystalline

Product Overview

The SunMaster 580 monocrystalline solar panel is designed for projects that demand high efficiency and reliable long term output. This advanced PERC module delivers up to 605 watts of power, with module efficiency reaching 21.38 percent in the top bin range. Its 120 half cell layout and multi busbar design help reduce resistive losses and support strong performance in real world conditions. The panel is optimized for utility scale projects, commercial rooftops, and demanding residential systems seeking dense energy production on limited space. With a maximum system voltage of 1500 volts and robust mechanical construction, the SunMaster SM12-580 series integrates easily into modern high power arrays. Low temperature coefficients help maintain energy yield in hot climates, while excellent low light behavior supports stable generation from dawn to dusk. Manufactured by Jinhua SunMaster Company Limited in China, this module offers a compelling balance of power, efficiency, and durability for cost conscious solar installations.

Key Benefits

High power density for limited roof space: Up to 605 watts in a 2172 by 1303 millimeter footprint maximizes energy yield per module. This allows fewer panels for the same system capacity and simplifies array design.

Efficient monocrystalline PERC cell design: Monocrystalline PERC cells reach up to 21.38 percent module efficiency. This helps reduce balance of system costs by delivering more power from each string.

Stable performance in heat and low light: A low Pmax temperature coefficient around minus 0.34 percent per degree Celsius supports better output in hot conditions. Strong low light response improves production on cloudy days and during early morning and late afternoon hours.

Robust construction for harsh environments: Tempered glass with anti reflection coating, an anodized aluminum frame, and IP68 junction box protection enhance durability. The module is engineered to withstand demanding outdoor conditions over decades of service.

Future ready system design flexibility: Support for 1000 volt and 1500 volt system voltages allows use in modern high voltage arrays. Compatibility with MC4 and MC4 compatible connectors simplifies integration with a wide range of inverters and mounting systems.

Long term reliability backed by warranties: A 15 year material and technology warranty and 30 year linear power output warranty provide confidence. The panel is tested to international standards for safety, quality, and environmental management.

How It Works

The SunMaster SM12-580 580 watt monocrystalline solar panel converts sunlight into usable DC electricity using advanced PERC cell technology. Each of the 120 half cut monocrystalline cells is designed to capture photons efficiently and guide electrons through multiple busbars with minimal resistance. Under standard test conditions, the panel operates at a maximum power voltage of around 33.9 volts and a maximum power current near 17.11 amps in the 580 watt bin. When installed as part of a string, the modules connect through MC4 compatible connectors to supply energy to an inverter, which then converts the DC power into AC power suitable for on grid or off grid systems. The anti reflection glass surface and optimized cell layout help maintain strong performance even when irradiance is reduced. Thermal characteristics are carefully balanced so that output remains more stable as cell temperature increases in strong sun. The result is a dependable, high output solar panel that supports efficient energy generation across a wide range of operating conditions.

Photon capture and DC power generation: Sunlight strikes the PERC monocrystalline cells and frees electrons within the silicon layers. The passivated rear surface reflects unabsorbed light back into the cell, increasing the chance of photon capture and raising overall efficiency.

Half cell layout and multi busbar conduction: The 120 half cells are wired to reduce current through each cell section, which lowers resistive losses. Multi busbar contacts shorten the path that electrons travel, improving shade tolerance and helping maintain output under partial shading.

System integration and energy delivery: The panel connects in series and parallel strings to build the desired array voltage and current. DC power flows through the IP68 junction box, along 4 square millimeter cables, to the inverter input, where it is converted into AC power for loads or export.

Technical Specifications

Brand / Manufacturer	Jinhua SunMaster Company Limited
Model Number	SM12-580~605W(120)
Cell Technology	Monocrystalline PERC, multi busbar
Cell Size	210 × 105 mm
Number of Cells	120 half cells (6 × 20 layout)
Module Type	Monofacial monocrystalline PV module
Power Range at STC	580 Wp to 605 Wp
Maximum Power (Pmax, 580W type)	580 Wp at STC
Power Tolerance	±3 W (approximately ±0.5 percent of rated power)
Module Efficiency Range	20.49 % to 21.38 %
Voltage at Maximum Power (Vmp, 580W)	33.9 V at STC
Current at Maximum Power (Imp, 580W)	17.11 A at STC
Open Circuit Voltage (Voc, 580W)	40.8 V at STC
Short Circuit Current (Isc, 580W)	18.25 A at STC
Maximum Power at NOCT (580W type)	435 Wp at NOCT conditions
Voltage at Maximum Power (Vmp, NOCT 580W)	31.4 V at NOCT
Current at Maximum Power (Imp, NOCT 580W)	13.86 A at NOCT
Open Circuit Voltage (Voc, NOCT 580W)	38.4 V at NOCT
Short Circuit Current (Isc, NOCT 580W)	14.78 A at NOCT
Nominal Operating Cell Temperature (NOCT)	43 °C ± 2 °C
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.34 % / °C (typical)
Temperature Coefficient of Voc	-0.26 % / °C (typical)
Temperature Coefficient of Isc	+0.05 % / °C
Maximum System Voltage	1000 V DC / 1500 V DC
Maximum Series Fuse Rating	30 A
Module Dimensions (H × W × D)	2172 × 1303 × 35 mm
Weight	31 kg (68.3 lbs)
Front Glass	3.2 mm tempered glass with anti reflection coating
Frame Type	Anodized aluminum alloy frame
Junction Box Protection Class	IP68, UL rated
Connector Type	MC4 or MC4 compatible connectors
Cable Cross Section and Length	4 mm² cable, portrait 300 mm, landscape 1300 mm
Standard Test Conditions (STC)	Irradiance 1000 W/m², cell temperature 25 °C, AM1.5 spectrum
NOCT Test Conditions	Irradiance 800 W/m², ambient temperature 20 °C, wind 1 m/s

Certifications & Compliance

Certifications: IEC 61215, IEC 61730, CE, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018
Inverter Compatibility: Compatible with most modern string and central inverters using MC4 inputs within 1000 V or 1500 V DC limits.
Environmental: Designed for high reliability under extreme conditions, including resistance to potential induced degradation, salt mist, ammonia, and hail tests.
Warranty: 15 year material and technology warranty plus 30 year linear power output warranty from SunMaster, subject to manufacturer terms.

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?

SunMaster SM12-580 580–605W PERC Monocrystalline Solar Panel

Model SM12-580~605W(120) | PERC Monocrystalline | 120 Half-Cell | Monofacial | 1500V System Voltage

580–605W

Max Power Output

Up to 21.38%

Module Efficiency

120 Cells

PERC Monocrystalline

Product Overview

Key Benefits

How It Works

Technical Specifications

Brand / Manufacturer	Jinhua SunMaster Company Limited
Model Number	SM12-580~605W(120)
Cell Technology	Monocrystalline PERC, multi busbar
Cell Size	210 × 105 mm
Number of Cells	120 half cells (6 × 20 layout)
Module Type	Monofacial monocrystalline PV module
Power Range at STC	580 Wp to 605 Wp
Maximum Power (Pmax, 580W type)	580 Wp at STC
Power Tolerance	±3 W (approximately ±0.5 percent of rated power)
Module Efficiency Range	20.49 % to 21.38 %
Voltage at Maximum Power (Vmp, 580W)	33.9 V at STC
Current at Maximum Power (Imp, 580W)	17.11 A at STC
Open Circuit Voltage (Voc, 580W)	40.8 V at STC
Short Circuit Current (Isc, 580W)	18.25 A at STC
Maximum Power at NOCT (580W type)	435 Wp at NOCT conditions
Voltage at Maximum Power (Vmp, NOCT 580W)	31.4 V at NOCT
Current at Maximum Power (Imp, NOCT 580W)	13.86 A at NOCT
Open Circuit Voltage (Voc, NOCT 580W)	38.4 V at NOCT
Short Circuit Current (Isc, NOCT 580W)	14.78 A at NOCT
Nominal Operating Cell Temperature (NOCT)	43 °C ± 2 °C
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.34 % / °C (typical)
Temperature Coefficient of Voc	-0.26 % / °C (typical)
Temperature Coefficient of Isc	+0.05 % / °C
Maximum System Voltage	1000 V DC / 1500 V DC
Maximum Series Fuse Rating	30 A
Module Dimensions (H × W × D)	2172 × 1303 × 35 mm
Weight	31 kg (68.3 lbs)
Front Glass	3.2 mm tempered glass with anti reflection coating
Frame Type	Anodized aluminum alloy frame
Junction Box Protection Class	IP68, UL rated
Connector Type	MC4 or MC4 compatible connectors
Cable Cross Section and Length	4 mm² cable, portrait 300 mm, landscape 1300 mm
Standard Test Conditions (STC)	Irradiance 1000 W/m², cell temperature 25 °C, AM1.5 spectrum
NOCT Test Conditions	Irradiance 800 W/m², ambient temperature 20 °C, wind 1 m/s

Certifications & Compliance

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!

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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

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