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Silfab 380W Solar Panel 120 cell Sil-380 HC

Solar Loan from 6.99%
All Silfab products All 380 Watt Panels



Rated Power Output 380 W
Voltage (VOC)42.17 V
Maximum String Voltage 1000V
Number of cells120
Cell TypeMonocrystalline
Rated Efficiency20.8%
Connector TypeMC4 from Staubli
Backsheet Colorblack
Frame Colorblack
Dimensions LxWxH69.4 in x 40.8 in x 1.37 in
Weight43 lb
Pallet Qty26
Manufacturer Part #Sil-380HC
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty25-30 year warranty
Delivery Time 5-7 business days

About product

Reviews & Questions

  • Reviews (2)
  • Questions (3)
I looked into it, and Silfab is really one of the best solar panel brands in the world. Excellent for my purposes, competitively priced, and expanding when other businesses are contracting. Btw, all black panels look awesome!
Nicholas Kirkwood
12/19/2022 06:39 am
My solar panels have been up and running for 8 days as of this review. Someone I trust strongly suggested them, so I went with it. The installation process and obtaining the necessary municipal permissions was the part I was most afraid of. But my installer did all the work and it was a breeze.
12/17/2022 06:29 am

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Is this a panel suitable for an rv trailer solar off grid system with battery backup? Please explain and if yes ...can you offer a DIY design yo utilize you panel?
12/18/2022, 14:46
This panel should fit on the roof of most RVs. It's also a good choice for an off-grid system. We do not provide instructions per se, but we have written a number of DIY articles. Click "Magazine" at the very top of our website. We have an entire compilation dedicated to solar for RV
For two 380 watt panels wired such that having a total of 760 watts, what amp size charge controller would I need.
12/18/2022, 14:33
The wattage of the panels is only one of the parameters to consider when sizing a charge controller. The second is the voltage of your battery bank. To arrive at the optimal amperage, just divide the total watts of your array by the voltage of the battery.
How much is shipping to florida.?
12/17/2022, 11:07
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.


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