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Grankia GMH435W

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9+ sold

In the last 7 days

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Specifications

Power Rating 435W

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.

Grankia GMH435W 435W Monocrystalline Monofacial Solar Panel

Model GMH435W | Monocrystalline | 120 Half-Cell 182×91 mm | Monofacial | 1500 V System Voltage

435 W

Max Power Output

20.1%

Module Efficiency

120

N-Type TOPCon

Product Overview

The Grankia GMH435W 435W monocrystalline solar panel is engineered for reliable energy production in residential and commercial systems. This high performance module delivers up to 435 W of output with panel efficiency reaching 20.1 percent under standard conditions. Its 120 half cut cells, based on 182×91 mm wafers, are designed to maximize light capture and reduce resistive losses. A robust anodized aluminium frame and 3.2 mm tempered glass provide strong structural integrity in demanding environments. The panel supports a maximum system voltage of 1500 V, which allows flexible string design for larger arrays. With a 12 year product warranty and carefully controlled power tolerance from 0 to +1 percent, dependable long term performance is supported. An operating temperature range from minus 40 to 85 degrees Celsius ensures suitability for diverse climates and rooftop conditions. This module fits projects that require a balance of high output, stable performance, and proven monocrystalline technology. Installers gain a dependable workhorse panel that integrates smoothly with modern inverters and mounting hardware. Owners benefit from consistent daily yield and an efficient footprint that helps optimize available roof or ground space.

Key Benefits

High power density: The 435 W rated output and up to 21.1 percent efficiency help maximize energy generation per square meter.

Reliable monocrystalline cells: Proven monocrystalline half cut cells improve performance while supporting efficient operation in varied sunlight conditions.

Tight power tolerance: A 0 to plus 1 percent power tolerance helps ensure delivered output closely matches the nameplate rating for each module.

Robust mechanical design: An anodized aluminium frame, EVA encapsulation, and 3.2 mm glass enhance durability during transport, installation, and long term use.

Flexible system integration: The 1500 V maximum system voltage and 25 A series fuse rating support modern string designs with broad inverter compatibility.

Wide operating temperature range: Operation from minus 40 to 85 degrees Celsius enables deployment in hot, cold, and mixed climate regions with confidence.

How It Works

The Grankia GMH435W monocrystalline solar panel converts sunlight into usable electrical power through its high efficiency silicon cells. Each of the 120 half cut cells absorbs incoming photons and releases electrons, creating direct current electricity at the module terminals. When modules are wired in series, system voltage increases up to the 1500 volt limit for long strings. The panel is designed to operate near its maximum power point, which is defined here by 34.09 volts and 12.77 amps. In typical systems an inverter tracks this operating point to harvest the highest possible energy over the day. The glass, encapsulant, and frame protect the cells from moisture, mechanical loads, and temperature swings to maintain stable performance. Temperature coefficients describe how output shifts as temperature rises above standard conditions. These values help system designers estimate yield across seasons and different installation environments with greater accuracy.

Photovoltaic energy conversion: Sunlight strikes the monocrystalline cells and excites electrons within the silicon lattice structure. This effect creates a flow of direct current that exits through the module cables and can be used or stored after inversion.

Maximum power point operation: The module reaches its rated 435 W output when it operates at 34.09 volts and 12.77 amps under test conditions. Modern inverters use tracking algorithms to hold the array close to this point as irradiance and temperature change throughout the day.

Thermal and environmental management: The panel continues working between minus 40 and 85 degrees Celsius within the specified temperature coefficients. Its EVA encapsulation, tempered glass, and IP68 junction box help shield sensitive components from dust, moisture, and mechanical impact.

Technical Specifications

Module Type	Monocrystalline solar panel
Model Number	GMH435W
Power Range	430 to 455 Wp
Maximum Power (Pmax)	435 Wp
Power Tolerance	0 to +1 %
Module Efficiency Range	19.9 to 21.1 %
Nominal Module Efficiency	20.1 %
Voltage at Maximum Power (Vmpp)	34.09 V
Current at Maximum Power (Impp)	12.77 A
Open Circuit Voltage (Voc)	40.8 V
Short Circuit Current (Isc)	13.67 A
Maximum System Voltage	1500 V
Series Fuse Rating	25 A
Nominal Module Temperature	45 ± 2 °C
Operating Temperature Range	-40 to 85 °C
Temperature Coefficient of Pmax	-0.35 % / °C
Temperature Coefficient of Voc	-0.276 % / °C
Temperature Coefficient of Isc	0.046 % / °C
Panel Dimensions (H × W × D)	1909 × 1134 × 30 mm
Weight	23.9 kg
Cell Size	182 × 91 mm
Number of Cells	120 cells
Glass Thickness	3.2 mm
Encapsulant Type	EVA encapsulation
Frame Material	Anodized aluminium frame
Junction Box Diodes	3 diodes
Junction Box Protection Class	IP68 rated junction box
Cable Cross Section	4 mm²
Cable Length	300 mm

Certifications & Compliance

Certifications: Standard safety and performance certifications typically applicable to grid tied monocrystalline modules. Please confirm final certification set with the manufacturer before design approval.
Inverter Compatibility: Compatible with most modern string and hybrid inverters that support 1500 V DC systems and appropriate current ratings.
Environmental: Designed for outdoor rooftop and ground mount use with IP68 junction box protection and durable aluminium frame construction.
Warranty: 12 year product warranty backed by Grankia Electric (Guangdong) Co., Ltd. for the GMH435W module.

● 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?

Grankia GMH435W 435W Monocrystalline Monofacial Solar Panel

Model GMH435W | Monocrystalline | 120 Half-Cell 182×91 mm | Monofacial | 1500 V System Voltage

435 W

Max Power Output

20.1%

Module Efficiency

120

N-Type TOPCon

Product Overview

Key Benefits

High power density: The 435 W rated output and up to 21.1 percent efficiency help maximize energy generation per square meter.

Reliable monocrystalline cells: Proven monocrystalline half cut cells improve performance while supporting efficient operation in varied sunlight conditions.

Tight power tolerance: A 0 to plus 1 percent power tolerance helps ensure delivered output closely matches the nameplate rating for each module.

Robust mechanical design: An anodized aluminium frame, EVA encapsulation, and 3.2 mm glass enhance durability during transport, installation, and long term use.

Flexible system integration: The 1500 V maximum system voltage and 25 A series fuse rating support modern string designs with broad inverter compatibility.

Wide operating temperature range: Operation from minus 40 to 85 degrees Celsius enables deployment in hot, cold, and mixed climate regions with confidence.

How It Works

Technical Specifications

Module Type	Monocrystalline solar panel
Model Number	GMH435W
Power Range	430 to 455 Wp
Maximum Power (Pmax)	435 Wp
Power Tolerance	0 to +1 %
Module Efficiency Range	19.9 to 21.1 %
Nominal Module Efficiency	20.1 %
Voltage at Maximum Power (Vmpp)	34.09 V
Current at Maximum Power (Impp)	12.77 A
Open Circuit Voltage (Voc)	40.8 V
Short Circuit Current (Isc)	13.67 A
Maximum System Voltage	1500 V
Series Fuse Rating	25 A
Nominal Module Temperature	45 ± 2 °C
Operating Temperature Range	-40 to 85 °C
Temperature Coefficient of Pmax	-0.35 % / °C
Temperature Coefficient of Voc	-0.276 % / °C
Temperature Coefficient of Isc	0.046 % / °C
Panel Dimensions (H × W × D)	1909 × 1134 × 30 mm
Weight	23.9 kg
Cell Size	182 × 91 mm
Number of Cells	120 cells
Glass Thickness	3.2 mm
Encapsulant Type	EVA encapsulation
Frame Material	Anodized aluminium frame
Junction Box Diodes	3 diodes
Junction Box Protection Class	IP68 rated junction box
Cable Cross Section	4 mm²
Cable Length	300 mm

Certifications & Compliance

● Available | Contact us for lead time and pricing

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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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