JC Solar JC-305-60M/MH
JC Solar JC-305-60M/MH
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JC Solar JC-305-60M/MH

JC Solar JC-305-60M/MH

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Length 60 m

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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.

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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.

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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.

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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.

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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.

Jiacheng Solar JC-305-60M/MH 305W Monocrystalline 60-Cell Solar Panel

Model JC-305-60M/MH | Monocrystalline Cell Technology | 60 Full-Size Cells | Monofacial | 1500V System Voltage

305 W
Max Power Output
18.75%
Module Efficiency
60 Cells
Monocrystalline

Product Overview

The Jiacheng Solar JC-305-60M/MH 305W monocrystalline solar panel delivers reliable power with compact dimensions and a robust build. This 60 cell module is engineered for residential and commercial rooftop projects where efficiency and durability matter. A nominal maximum power output of 305 watts is provided, with a panel efficiency of 18.75 percent under standard test conditions. The module sits within a versatile power range from 300 to 320 watts, which supports flexible array designs. Clean aesthetics are ensured by its tempered, anti reflection coated glass and anodized aluminium frame. The JC-305-60M/MH panel is designed for harsh sites with an operating temperature range from minus 40 to 85 degrees Celsius. Power performance is backed by a linear power warranty extending up to twenty five years. This JC Solar module suits grid tied systems, off grid setups and hybrid installations that demand long term output stability.

Key Benefits

High power density in a compact footprint: The 305W rating and 18.75 percent efficiency allow strong output from a compact 1640 by 992 millimetre frame, helping maximise energy on constrained rooftops.

Reliable long term performance: A 12 year product warranty is combined with a power warranty that guarantees 91.2 percent output at ten years and 80.7 percent at twenty five years, supporting stable lifecycle yields.

Optimised monocrystalline cell design: High quality 156.75 millimetre monocrystalline cells are used to deliver strong low light performance and high conversion efficiency within the 300 to 320 watt power range.

Durable construction for challenging climates: The panel features 3.2 millimetre tempered glass with anti reflection coating, an anodized aluminium frame and a wide operating temperature range from minus 40 to 85 degrees Celsius.

Flexible system integration: A maximum system voltage rating of 1500 volts and a 20 amp series fuse rating support long strings and efficient layouts in residential and commercial arrays.

Lightweight yet robust module: The JC-305-60M/MH weighs only 18 kilograms, simplifying handling and installation while maintaining mechanical strength and structural integrity.

How It Works

The JC Solar JC-305-60M/MH monocrystalline panel converts sunlight into usable direct current electricity through its 60 high efficiency cells. Each 156.75 by 156.75 millimetre cell produces voltage when illuminated, and cells are wired in series and parallel to reach the rated 305 watt output. Under standard test conditions, the module operates at a maximum power voltage of 32.8 volts and a maximum power current of 9.3 amps. A carefully engineered junction box and cables conduct that DC power safely toward an inverter or charge controller. The tempered glass and EVA encapsulation protect the cells from moisture, dust and mechanical impact. Panel performance remains stable across a wide temperature range, supported by controlled temperature coefficients for power, voltage and current. Once integrated with a compatible inverter, the generated DC power is converted to AC electricity for building loads or export to the grid.

Monocrystalline energy conversion: Sunlight strikes the monocrystalline silicon cells and releases electrons, which flow through the cell structure as electrical current. The consistent crystal structure used in these cells supports higher efficiency compared with many polycrystalline modules.

Module operating point and power output: At standard test conditions, the panel reaches its rated power at 32.8 volts and 9.3 amps, defined as the maximum power point. The open circuit voltage of 40.3 volts and short circuit current of 9.83 amps describe the electrical limits under ideal conditions.

Temperature behaviour and reliability: As cell temperature rises above 45 degrees Celsius, a power temperature coefficient of minus 0.37 percent per degree is applied, which slightly reduces output. The panel is designed to maintain structural integrity and predictable performance between minus 40 and 85 degrees Celsius.

System integration and protection: The integrated junction box provides safe electrical connections and supports string design up to 1500 volt systems. A 20 amp series fuse rating helps protect the module and system wiring against overcurrent events in properly engineered arrays.

Technical Specifications

Brand Jiacheng Solar Technology Co., Ltd.
Country of Origin China
Model Number JC-305-60M/MH
Cell Technology Monocrystalline silicon
Cell Size 156.75 × 156.75 mm
Number of Cells 60 cells
Power Range 300 ~ 320 Wp
Rated Maximum Power (Pmax) – Main Configuration 305 Wp
Voltage at Maximum Power (Vmpp) – 305W Module 32.8 V
Current at Maximum Power (Impp) – 305W Module 9.3 A
Open Circuit Voltage (Voc) – 305W Module 40.3 V
Short Circuit Current (Isc) – 305W Module 9.83 A
Alternative Maximum Power (Pmax) Configuration 227 Wp
Voltage at Maximum Power (Vmpp) – 227W Module 30.8 V
Current at Maximum Power (Impp) – 227W Module 7.4 A
Open Circuit Voltage (Voc) – 227W Module 37.2 V
Short Circuit Current (Isc) – 227W Module 8.12 A
Module Efficiency Range 18.44 ~ 19.67 %
Panel Efficiency – 305W Version 18.75 %
Power Tolerance 0 ~ +1 %
Total Degradation Rate 0.77 % per year (approximate linear rate)
Nominal Operating Temperature 45 ± 2 °C
Operating Temperature Range -40 ~ 85 °C
Temperature Coefficient of Pmax -0.37 % / °C
Temperature Coefficient of Voc -0.28 % / °C
Temperature Coefficient of Isc +0.048 % / °C
Maximum System Voltage 1500 V
Series Fuse Rating 20 A
Panel Dimensions (H × W × D) 1640 × 992 × 35 mm
Weight 18 kg
Front Glass Type Tempered glass with anti reflection coating
Glass Thickness 3.2 mm
Frame Type Anodized aluminium frame

Certifications & Compliance

Certifications: Standard crystalline silicon PV module certifications are typically supported; please refer to the official datasheet or supplier for confirmed certificates such as IEC and safety standards.
Inverter Compatibility: Compatible with most modern string, hybrid and off grid inverters operating up to 1500 V DC; final compatibility depends on the chosen inverter model and string design.
Environmental: Designed for outdoor installation with tempered glass, sealed junction box and weather resistant frame, suitable for a wide range of climates and rooftop conditions.
Warranty: 12 year product warranty on materials and workmanship, plus a performance warranty specifying 91.2 % power at 10 years and 80.7 % power at 25 years under standard 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

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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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