Out of stock

Phono Solar 365W Solar Panel 120 Cell TwinPlus

All Phono Solar products All 365 Watt Panels



Rated Power Output 365 W
Voltage (VOC)40.01 V
Maximum String Voltage 1000/1500V
Number of cells120
Cell TypeMonocrystalline
Rated Efficiency19.9 %
Backsheet Colorblack
Frame Colorblack
Dimensions LxWxH69.45in. x 40.01in. x 1.38in
Weight42.99 lb
ManufacturerPhono Solar
Manufacturer Part #PS365M4H-20/UHB
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

PS365M4H-20 is part of the Twinplus Series — one of the most recent made by Phono Solar. These panels employ cutting-edge technologies to achieve superior efficiency and reliability. The Passivated Emitter Rear Contact (PERC) technology ensures excellent power output. This solar cell type employs an additional reflective layer to absorb more sunlight. To further boost the performance, Phono Solar employs half-cut cell technology. Each of the panel’s 120 cells is only half the size of a traditional solar cell. This grants PS365M4H-20 lower resistive losses and better shade tolerance. Not surprisingly, the efficiency of this module is quite high – 19.9%. Cell surface, back foil and frame are completely black, giving the model unrivaled aesthetics. Phono Solar provides a 12-year product warranty. Stable power output is also guaranteed — performance warranty will protect you during 25 years.

  • 365 W power output
  • 120 half-cut PERC cells
  • 19.9% efficiency
  • 1500 V DC maximum system voltage
  • MC4 compatible connectors
  • 12-year product and 25-year performance warranties

High efficiency of 19.9%

Phono Solar Twinplus panels take full advantage of the company’s technologies that have won Phono Solar multiple awards. This PERC option offers higher power output per square foot of PV modules. This means quicker installation times and fewer clamps and racks. All of which reduces your overall costs, shortening the payback time.

Keeping the cool in high temperatures

PS365M4H-20 manages to stay efficient even at high temperatures. For every 1.8°F above 77°F, it loses just 0.3% in efficiency, allowing you to make the most of the sunniest hours.

Quality and reliability

PS365M4H-20 receives multiple quality checks throughout the manufacturing process and is subject to stringent quality and reliability testing. The manufacturing facilities are highly automated, eliminating the risk of human error. Phono Solar is dedicated to quality, safety and reliability to ensure you get the very best.

Low degradation for a longer lifespan

These panels will lose no more than 3% of their power output in the first year of service. From the 2nd year to the 25th year, the average annual power decline will be no more than 0.7%. The module retains over 80.2% of its original output after 25 years. Guaranteed by Phono Solar.

Certified for the most challenging environmental conditions

PS365M4H-20 is resistant to PID, salt, acid and ammonia. It can also withstand up to 5400 Pa mechanical load on the front and 2400 Pa on the back. Such robustness is mainly due to the 1.38" thick anodized aluminum frame and a layer of protective glass.

Outstanding all-black design

The panel features all-black design which looks great on any roof. The manufacturer ensures excellent cell color by special treatment and selection processes. Phono Solar engineers use thinner wires to connect the cells together, and at a distance the surface of the modules appears smooth and uninterrupted.


69.45" x 40.94" x 1.38"


42.99 lb

Reviews & Questions

  • Reviews (3)
  • Questions (3)
So far, everything appears okay. I believe we generate around 40 each day, but I'm not sure. The most generation happens from 10 am to 4 pm.
05/27/2022 09:06 pm
Need a few more months and bills before I can comment on our new system. But the store did a great job, we enjoyed working with you guys
Gualtiero Buccho
05/08/2022 05:55 pm
Due to the configuration of our roof, the system had to be divided into three arrays, each having 16 panels facing west and 8 panels facing north. We generate 40 kWh on average daily and nearly 60 kWh on clear days. For our purposes, the micro inverters are wonderful. We couldn't produce anything close to these numbers using a string system.
Ada Cocci
03/11/2022 11:00 am

Leave a review

Are panels made by Phono Solar considered tier 1?
06/22/2022, 19:59
Yes, Phono Solar is a Tier 1 company.
Does Phono Solar have an office in the US? Could you share their contact info pls?
Iida Mönkkönen
04/05/2022, 13:44
Yes, they do have an office in the USA. Their email address: usa@phonosolar.com
Are these panels compatible with microinverters?
Cheri G. Elias
03/01/2022, 08:32
Yes, Phono Solar panels are compatible with all popular microinverters.


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%.
Do you offer discounts?
We do offer discounts for orders of over 50 units. Please contact us for details.
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