Canadian Solar 305W CS6K-305MS Solar Panel is available online at a low price at A1 Solar Store
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Canadian Solar CS6K-305MS 305W Solar Panel

Price per Watt  —  $0.61
Rated Power Output  —  305 W
Voltage (VOC)  —  39.9V
Cell Type  —  Monocrystalline Silicon
Warranty  —  10/25 years see manufacturer

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Canadian Solar CS6K-305MS 305W Module

Canadian Solar's newest 60 cell Mono-PERC SuperPower CS6K-305MS module has a power output of 305W and a 5 bus bar cell design. The Mono-PERC cells in this module, significantly improve efficiency and reliability. PERC stands for Passivated Emitter Rear Contact. This refers to the dielectric layer on the back of a PERC solar cell which helps to reflect light that passes through the cell and then back into the cell to generate more electrons. This process is also known as backside passivation. The CS6K-305MS also offers superior low irradiance performance in the morning, evening and even on cloudy days, increasing the energy output of the panel and the overall yield of the solar system. This module also features a lower temperature coefficient improving the module's per watt actual power output compared to standard mono solar panels, reducing Light Induced Degradation (LID) by over 30%.


  • High Performance and Energy Yield
  • Outstanding low irradiance performance of up to 97.5%
  • 11% more power than conventional modules
  • High PTC rating up to 91.90%
  • High energy yield at low NOCT = 45°C
  • Positive power tolerance up to 5 W
  • Reduced cell series resistance

359 Quality Control Points

158 of their 359 quality control points are for incoming materials, while 62 are for raw materials processes and the others for production control:

  • Electroluminescence testing: A 100% EL screen test to eliminate cell or module defects
  • Testing and analysis: Performance reliability, mechanical and chemical tests of raw materials and components
  • Machine testing: Advanced automatic equipment in testing and manufacturing process
  • Lab testing: The first module manufacturer-owned photovoltaic reliability testing laboratory to meet ISO/IEC 17025 standards
  • Cleaning: 100% module visual inspection and clean before packing
  • Increased System Reliability

Strong 35mm robust frame to hold a heavy snow load up to 6000 Pa and wind load up to 4000 Pa. Anti-glare project evaluation. Salt mist, ammonia and blowing sand resistance, apply to seaside, farm and desert environments.


Condition New
Connector Type T4 series
Dimensions LxWxH 65" x 39.1" x 1.38"
Manufacturer Canadian Solar
Manufacturer Part # CS6K-305MS
Model Canadian Solar 305W CS6K-305MS
Operating temperatures -40 ... +85°C
Rated Efficiencies 97.5%
Weight 40.1 lbs
Price per Watt 0.61
Rated Power Output 305
Voltage (VOC) 39.9V
Cell Type Monocrystalline Silicon
Warranty 10/25 years see manufacturer



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Canadian Solar 305W CS6K-305MS Solar Panel (CS6K-305MS.pdf, 1,159 Kb) [Download]


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