LONGi 445W Solar Panel 144 cell LR4-72HPH-35 Modules

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Customer reviews & Questions

Verified buyer reviews

Reviews
Questions (4)

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Mark C.

03/05/2022

Where are these in stock so i can pick up 2?? East coast??

A1 SolarStore

The product is out of stock currently.

Ken Skodacek

06/05/2021

Can it be used on an arch on a sailboat??? I am looking at a group of five, side-by-side, with the long dimension running fore and aft.

A1 SolarStore

Yes you can.

Qingyuan

05/21/2021

How long are the cables of this panel? Can I customize?

A1 SolarStore

Please see datasheet on product page for specifications.

w.schwanki

05/10/2021

Is the longi 445 compatible with an Aurora inverter?

A1 SolarStore

Yes. Its universal panel

Specification

Length	82.5in
Width	40.9in
Rated Power Output	445 W
Voltage (VOC)	49.1V
Number of cells	144
Cell Type	Monocrystalline
Rated Efficiency	20.5%
Connector Type	MC4 or MC4 compatible
Backsheet Color	white
Frame Color	silver
Dimensions LxWxH	82.5 x 40.9 x 1.38 in
Pallet Qty	30
Manufacturer Part #	LONGI445WLR4-72HPH-35
Operating Temperatures	-40 °F to +185 °F
Scope of Application	Solar Panels for Boats Solar Panels for Home Solar Panels for RV
Use	Grid-Tie Off-Grid
Warranty	12-year warranty extendable 25 years

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FAQ

How much is shipping and how long is delivery?

Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.

What is the difference between low price panels and top price panels?

With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.

What are the dimensions of the panel?

Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.

How long is the warranty on the panel?

In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.

Which panels do you recommend for RV, marine?

We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.

Can this panel be used with a 12v system?

Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.

Can I pick up this panel from your fulfillment center to save on shipping?

Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.

How do I connect these panels?

To achieve the best system efficiency, panels should be connected in series to create higher voltage.

How many panels do I need?

This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.

How do I build a solar system?

Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.

How do solar panels compare?

Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.

Can I build a solar system by myself as a Do It Yourself project?

Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.

Can I connect and charge my solar panel battery directly with the solar panel?

We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.

Can I drill holes into the aluminum frame for mounting?

We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.

Do solar panels require maintenance? Can I wash my solar panel?

Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.

Will my panel produce power in an overcast condition?

While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.

Will my panels produce power if covered with snow?

Solar panels cannot produce electricity if covered with snow.

What is the best direction for a solar panel to face?

The best direction for a solar panel to face is the South

About product

LONGI 445W LR4-72HPH-35 is a 144 cell module with high efficiency and low LID mono PERC cells. Half-cut Multi Busbar Technology improves performance and boosts production of the solar panel. This module has a 35mm lightweight frame resilient enough to withstand 5400Pa load and 25mm hailstones at the speed of 23 m/s.

445W Power Output
144 Cell, Monocrystalline, 9 busbars
20.5% Module Efficiency
1500 Volts Max Voltage
Low LID mono PERC cells
MC4 connectors
Silver frame, white back

PV Module Efficiency of up to 20.5%

LONGI 445W LR4-72HPH-35 performs at 20.5% efficiency, ensuring excellent energy yields. It is achieved due to the advanced technologies, such as M6 Gallium-doped wafers and 9-busbar half-cut cell technology.

Quality and Reliability

All LONGI panels undergo a number of stringent quality control tests. LONGI 445W LR4-72HPH-35 is designed to withstand front side maximum static loading of 5400Pa and rare side maximum static loading of 2400Pa.

Slow Power Degradation

Slow power degradation is achieved due to Low LID Mono PERC technology. First year the panel degrades <2%, and 0.55% over the next 24 years.

Enhanced Frame Design

The module’s 35 mm frame design provides easy mounting and ensures robust mechanical strength, which makes LONGI 445W LR4-72HPH-35 suitable for both roof and ground installations. This module passed rigorous ammonia and salt mist resistance tests.

25-Year Power Output Warranty

LONGI 445W LR4-72HPH-35 comes with a 12-year materials and processing warranty and 25-year warranty for extra linear power output.

Size

82.5" x 40.9" x 1.38"

Weight

51.81 lbs

Related materials

LONGI 445W Solar Panel 144 cell LR4-72HPH-35

PV Module Efficiency of up to 20.5%

Quality and Reliability

Slow Power Degradation

Enhanced Frame Design

25-Year Power Output Warranty

Size

Weight