Sungold Solar PERC Shingled-cell Solar Panel SGD-M2-25W

Sungold 25W monocrystalline photovoltaic panel with conversion efficiency up to 22%, has a longer lifespan. To prevent solar cells from overheating, our solar panels are equipped with high-performance bypass diodes to minimize power drop due to shading.

In our Sungold solar panels, each sub-string consists of 36~40 connected cut cells in a way that ensures that there is no distance between cells. This innovative technology maximizes the space for the cell array and significantly improves the panel’s efficiency.

Pre-drilled holes on the back of the panel allow for quick installation and fixing, ideal for off-grid applications including RVs, roofs, cabins, yachts, etc.

make the most of every sunlight

Shingle process
Higher Efficiency
Easy Installation

Shingled process

The shingle process uses the latest mono solar cells, using a special welding method to connect the cell. The area under the same power output is smaller, the front can be more strongly affected, and it is also one of the latest production processes in the solar industry.
Higher Power
Maximum power of 25w, efficiency of 22%. PERC shingled cell technology, can capture more sunlight and convert it into electrical energy, resulting in higher power output.This makes PERC technology an attractive option for solar panel manufacturers and installers.
SGD series perc shingled-cells solar panels are the most mature design. The connection between the glass panel and the aluminum frame is encapsulated with solar silica gel, which will not allow any water vapor to enter. SGD series photovoltaic panel has IP67 waterproof grade. The whole product will not be affected by rain or water splashing. It can work outdoors for a long time without worrying about any quality problems.
Easy Installation

Pre-drilled holes on the back of panels for fast mounting and securing Suitable for most solar panel fixing brackets on the market. providing a fast, easy, and cost-effective solution for mounting and securing the panels.


Frequently Asked Questions
SGD solar glass panel is one of the most mature products, although the weight of the product is relatively thick, but stable and trouble-free use is greatly reducing the customer’s after-sales worries.
Conventional RV roof, roof off grid system, traffic road peripheral products, field fixed use, etc.
Yes, the USB power comes from the battery and the controller will protect the battery from overcharging and overdischarging.
The low voltage disconnect is set in most of chargers / controllers, not on solar panel. My suggestion is not to charge yours battery without controller, you will damage your battery.
Yes. It reduces output dramatically as in all solar panels.
Panels are not affected by ice, snow, or rain, but you lose some efficiency in bad weather

Maximum power(Pmax)


Open-circuit voltage(Voc)


Voltage at Pmax(Vmp)


Short-circuit current(Isc)


Current at Pmax(Imp)


Cells efficiency(%)


The maximum system voltage

600V DC(IEC)

Power temperature coefficient


Voltage temperature coefficient


Current temperature coefficient


Output power tolerance


Operating temperature







10 years

Not sure what your needs
There are three things we need to determine what you will need for your solar generator
What type of solar panel do you need?
What size of solar panels and batteries will be needed
What is the total watts you will be needing and how with your generator be used?

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