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Phono Solar

Phono Solar 320W Mono 120 Cell All Black

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Product Details

With a sleek black on black look, Phono Solar's 320 watt high efficiency solar panels are perfect for residential rooftop solar installations. Their small size makes them an easy fit where space is limited while their high efficiency rating ensures you will get the most wattage possible from the solar installation area.


  • Half-cut solar cells make Phono Solar’s 320 watt solar panels more resistant to physical damage and more shade tolerant than solar panels with full-sized solar cells.
  • The Phono Solar 320 watt solar panels are made with PERC (Passivated Emitter Rear Contact) cell technology. PERC solar cells add a layer of material to the back of the cell, to capture more light and improve the overall solar panel efficiency.
  • With a 5400 Pa snow load capacity, the Phono Solar 320 watt solar panels can handle whatever to worst winter conditions from the Rockies to the Great Lakes
  • Phono Solar is recognized as a Tier 1 Solar Manufacturer with a high sales volumes, stable balance sheet, automated production line with strong quality control checks and a healthy reputation in the solar industry

Warranty Information

  • 25 Year Power Warranty (covers power production with expected annual degradation of the power output)
  • 12 Year Product Warranty (covers manufacturing defects, faulty wiring and premature wear and tear)
  • 97% Power output in the first year
  • 90% Power output at year 10
  • 80% Power output at year 25

Warranty: Download


General Information:

Manufacturer Phono Solar
Model Number PS320M-20/UH
Country of Origin China

Mechanical Specifications:

Dimensions 65.95” x 39.06” x 1.38”
Weight 40.78 lbs
Frame Color Black
Backsheet Color Black

Electrical Specifications:

Power at STC 320 Watts
Number of Cells 120 Cells
PV Module Efficiency 19.26%
Max Power Voltage 33.01 Volts
Open Circuit Voltage 39.92 Volts
Max Power Current 9.69 Amps
Short Circuit Current 10.13 Amps
Max System Voltage 1000 Volts / 1500 Volts

Datasheet: Download file

Installation Guide: Download file

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  • Design your dream system with sizing & layout recommendations from our seasoned solar advisors.
  • Skip the paperwork with our hassle-free permitting and interconnection services.
  • On-demand tech support to help navigate installation and accommodate any questions/concerns you may have.

Every system we sell is backed by our 100% money-back guarantee. If for some reason your permit doesn't get approved, we'll refund your purchase in full. (See terms and conditions)

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