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Phono Solar 370W Solar Panel 120 cell PS370M4H-20/UHB

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Rated Power Output 370 W
Voltage (VOC)41.9 V
Maximum String Voltage 1500V
Cell number
  • 120 cell
Cell TypeMonocrystalline
Rated Efficiency20.31 %
Connector TypeMC4
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH69.09 × 40.87 × 1.38 in
Pallet Qty31
ManufacturerPhono Solar
Manufacturer Part #PS370M4H-20/UHB
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

PS-20-UHB 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 PS-20-UHB lower resistive losses and better shade tolerance. At 20.31% efficiency, PS-20-UHB offers surprising performance for its weight and size. Cell surface, back foil and frame are completely black, giving the model unrivaled aesthetics. Phono Solar offers 12 years of product warranty and guarantees 84.8% of original performance after 25 years of operation. 

  • 370 W power output
  • 120 half-cut PERC cells
  • 20.31% efficiency
  • 1500 V DC maximum system voltage
  • MC4 connectors
  • 12-year product and 25-year performance warranties

More energy and efficiency

The PERC technology further improves an already excellent efficiency of 20.31 percent. A reliable PID resistance and a unique glass lamination were added by the maker, which ultimately produced a model that was effective and extremely durable. PS-20-UHB produces 370 W of power under typical test settings.

Heat-resistant performance

The heat is less of a threat with this module: with one of the lowest temperature coefficients in the industry, PS-20-UHB loses just 0.36% of efficiency for every 1.8°F above 77°F.

High quality standards

Phono Solar strict manufacturing standards include multiple tests to provide extreme quality assurance. The facilities are highly automated, allowing the company to maintain high standards and keep the level of warranty claims very low.

Low degradation for increased lifespan

The amount of power output loss experienced by these panels during the first year of operation will not exceed 2%. The average yearly power drop from the second to the 25th year will not surpass 0.55%. After 25 years, the module will still produce more than 84.8% of its initial output.

A panel that can handle hail, wind and snow

The 1.18" frame built of anodized aluminum and a layer of protective tempered glass make this module weather-resistant. The front side of the modules can withstand a 5400 Pa load, whereas the back side can withstand a 2400 Pa load.

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.


69.09" x 40.87" x 1.18"


44.75 lb

Reviews & Questions

  • Reviews (3)
  • Questions (3)
Lovely, modern-looking panels. A very good impression from the panels thus far. The panels themselves show about 5% production-related variation, but I guess this is normal
Muhibb Essa
10/17/2022 07:29 am
We paid close attention to the panel's appearance. They've got that sleek, contemporary all-black look. We recommend both Phono panels and A1Solar store
Dave Schmitz
10/17/2022 07:27 am
Instead of spending a fortune on LG NeON panels, you can get comparable performance from these Phono solar panels... Perform as intended...
Randall Coenraad
10/17/2022 07:22 am

Leave a review

what is the shipping cost to 92407
10/17/2022, 07:19
Shipping starts at $250 for up to 8 solar panels, and goes up by $25 with every 4 modules on top of that. Some panels qualify for free shipping when ordering over 10 items.
I am putting these on a pool pump that needs 1200w. How can I link them together? Do you have brackets?
Lance King
10/17/2022, 07:15
You can either connect the panels in parallel or in series. We do not sell brackets separately, but we include them in our solar kits. If you need a turnkey solution, please press "Systems" at the very top of this page.
if i am charging a 12v parallel bank, will a proper mppt controller efficiently use the 30+v output of these panels or simply throttle it?
10/17/2022, 06:20
A proper MPPT controller will efficiently use the output of these panels.