Out of stock

Silfab 370W Solar Panel 66 cell SIL-370 BK

price as of June 23
All Silfab products All 370 Watt Panels


Rated Power Output 370 W
Voltage (VOC)45V
Number of cells66
Cell TypeMonocrystalline
Rated Efficiency20.8 %
Connector TypeMC4
Backsheet Colorblack
Frame Colorblack
Dimensions LxWxH70.67" x 39.98" x 1.5"
Weight41.9 lbs
Manufacturer Part #Silfab370WSIL370BK
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty25 years Manufacture
Delivery Time 5-7 business days

About product

Silfab BC Series 370W is a 66 cell monocrystalline solar panel 100% made in North America. This all-black panel features Back Contact technology, which results in higher than average quality and power output. It makes a Silfab 370W solar panel ideal for both residential and commercial installations. The PV module has undergone multiple quality tests and is BAA and ARRA compliant.

  • 370 Watts
  • 66 Cell, Monocrystalline
  • 20.8% Module Efficiency
  • 1000 V Max System Voltage
  • MC4 connectors from Staubli
  • Black frame, black back

Industry-Leading Efficiency of up to 20.8%

Premium quality materials and strict quality control management allow Silfab panels to show an efficiency of up to 20.8% under test conditions. Reduced thermal stresses and increased current flow paths contribute to an even greater solar power harvest.

Back Contact Technology

Silfab is one of the first to introduce next generation Back Contact technology. In a Silfab 370W solar panel, all electrical contacts are placed at the back of a cell. It creates lots of additional space on the front of the module to capture more sunlight.

Automated Manufacturing Process

Silfab’s manufacturing process is one of the most automated in the world. The North American manufacturer pays a particular attention to details to ensure high-quality PV modules, which outperform the others in efficiency, endurance and long-term power performance.

Quality and Reliability

The quality of each Silfab BC Series 370W panel is under meticulous control throughout the manufacturing process. Silfab panels are designed and manufactured to meet Buy American Act Compliance.

Enhanced Frame Design

The module’s aluminium light-weight frame is compatible with different racking. It is also extremely durable, being able to withstand a heavy snow load up to 5400 Pa and wind loads up to 4000 Pa.

25 Year Product and 30 Year Performance Warranty

Silfab BC Series 370W comes with an industry leading 25-year product workmanship and 30-year performance warranty.


70.67" x 39.98" x 1.5"


41.9 lbs

Reviews & Questions

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What technology was used to build these panels?
05/12/2021, 19:07
One of the greatest benefits of the Silfab BC Series 370W is that they are based on the new generation Back Contact technology which guarantees reliability and stability.


How much is shipping and how long is delivery?
Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.
What is the difference between low price panels and top price panels?
With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.
What are the dimensions of the panel?
Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.
How long is the warranty on the panel?
In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.
Which panels do you recommend for RV, marine?
We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.
Can this panel be used with a 12v system?
Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.
Can I pick up this panel from your fulfillment center to save on shipping?
Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.
How do I connect these panels?
To achieve the best system efficiency, panels should be connected in series to create higher voltage.
How many panels do I need?
This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.
Do you offer discounts?
We do offer discounts for orders of over 50 units. Please contact us for details.
How do I build a solar system?
Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.
How do solar panels compare?
Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.
Can I build a solar system by myself as a Do It Yourself project?
Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.
Can I connect and charge my solar panel battery directly with the solar panel?
We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.
Can I drill holes into the aluminum frame for mounting?
We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.
Do solar panels require maintenance? Can I wash my solar panel?
Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.
Will my panel produce power in an overcast condition?
While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.
Will my panels produce power if covered with snow?
Solar panels cannot produce electricity if covered with snow.
What is the best direction for a solar panel to face?
The best direction for a solar panel to face is the South