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GSTAR 440W Solar Panel 108 Cell Bifacial GSD7S54T-440BT Commercial 936 panels per Container (Truckload)

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(30 ratings)

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Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (30)
  • Questions (4)
Panels feel sturdy, no weird hotspots so far. Knocking one star cause the truck was late but a1’s rep kept me updated the whole time.
good quality panels highly recommend
Counts matched, pallets consistent. We meter-tested a sample, all within spec.
Working fine so far efficiency around 22% as claimed we tested a few and results match.
you pay a little more, but you get more. simple
no regrets getting these bifacial panels they look nice and work better than advertised
Panels looked clean, frames straight, output right on spec.
i install solar full time these are legit panels
pretty solid panel for the price not much drop in production.
beats my jinkos by a mile
Used these for a commercial job. No defects. Reliable output.
Good value for money performs close to spec in cloudy days too
Been running for 6 months and zero issues great efficiency and strong frame
Strong build quality you can feel it. Performance has been awesome so far
They take the heat no problem. Still hitting over 400W mid-summer.
Price per watt was unbeatable and quality looks top-notch
We put these on a farm building and the output’s been better than expected
love the power these produce even on cloudy days.
The bifacial effect is real. Pickin up extra watts from the back side. Awesome tech
these things pump out power like crazy. loving it so far
real nice panels no problems at all
Pretty happy overall, a little heavier than expected but solid build
Using these for our warehouse install they crank out serious power
Been live for 3 months, getting better production than expected.
got a full truckload good price panels workin great so far.
installed these on my warehouse roof solid output even on cloudy days highly recommend
got mine 2 weeks ago good stuff seems strong hope they hold up
Got a truckload for my farm, panels look sharp and work great. Zero issues.
shawn oaks
10/20/2024
how long will they last ?
A1 SolarStore
You can expect over 30 years of reliable performance.
zoë
09/21/2024
is this good for hot climates
A1 SolarStore
Definitely. It has a low temperature coefficient, meaning less power loss in high heat.
Pavel
09/04/2024
I heard bifacial works better on white roofs—is that true
A1 SolarStore
Yes! Light-colored or reflective surfaces can help boost backside generation.
Nani
08/03/2024
Is this panel good for commercial roofs?
A1 SolarStore
Yes, it's designed specifically for commercial use — efficient, sleek, and space-saving.

Specification

Rated Power Output 440 W
Voltage (VOC)38.87 V
Maximum String Voltage 1500 V
Number of cells108 Cell
Technology
  • Bifacial
  • TOPCon
Cell TypeMonocrystalline
Rated Efficiency22.53 %
Connector TypeMC4-EVO2
Frame ColorSilver Frame
Dimensions LxWxH67.8 x 44.65 x 1.18 in
Pallet dimensions LxWxH67.8 x 44.65 x 42.48 in
Weight52.91 lbs
Pallet Qty36
ManufacturerGSTAR
Manufacturer Part #GSD7S54T-440BT
Operating Temperatures −40°F to +185°F
Scope of ApplicationBuildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty25-year product warranty / 30-year linear power warranty

Close-wattage solar panels

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About product

Among the newest offerings of GSTAR, GSD7S54T-440BT is part of the GSD7S54T series. These panels use state-of-the-art technology to achieve high efficiency and dependability.

Half-cut cell technology adds a few more percent to the overall performance, making this model a great example of efficiency. GSTAR made solar cells in GSD7S54T-440BT two times smaller than the standard size, thus reducing power loss and improving low-light behavior. The efficiency of this model reaches 22.53% — well above the market’s average. And while conventional panels use only one side to absorb photons, bifacial modules employ both sides at the same time. Thanks to the technology, this model can be up to 30% more efficient. GSTAR provides an industry-leading 30-year linear power warranty and a 25-year product warranty.

  • 108 half-cut TOPCON N-type cells
  • 440 W nameplate capacity
  • 22.53% efficiency
  • 1500 V DC maximum system voltage
  • MC4-EVO2 connectors
  • 25 years of product and 30 years of linear power warranty

Great productivity through the latest innovations

This GSTAR panel provides 440 W power at 22.53% efficiency. High energy production levels are achieved through the usage of the latest advances in the solar industry, including TOPCON N-type cell technology and state-of-the-art antireflective coating. An efficient panel yields more per square foot and pays for itself faster.

Heat-resistant performance

The heat is less of a threat with this module: with one of the lowest temperature coefficients in the industry, GSD7S54T-440BT loses just -0.3% of efficiency for every 1.8°F above 77°F.

High quality standards

GSTAR stringent production requirements include various tests to guarantee high quality. The facilities are highly automated, allowing the manufacturer to maintain high standards while keeping warranty claims to a minimum.

Low degradation for increased longevity

In the first year of service, these panels will lose no more than 1% of their power output. The average yearly power drop from the second to the 30th year will be no more than 0.4%. After 30 years, the modules will retain more than 87.4% of their initial output.

Improved frame design

GSD7S54T-440BT design makes it suitable for both residential and business rooftops. The use of a strong 1.18" frame composed of anodised aluminium boosts durability and strength. The model can withstand a significant snow load of up to 5400 Pa. The panel's back can withstand 2400 Pa, guaranteeing that your system will resist even the fiercest winds.

Size

67.8" x 44.65" x 1.18"

Weight

52.91 lb

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