420 Watt Solar Panels

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Silfab 420W Solar Panel 108 Cell All-Black SIL-420-QD

  • Rated Power Output 420 W
  • Voltage (VOC)37.68V
  • Number of cells108
  • Cell TypeMonocrystalline

Delivery on Jun 24–27

In stock
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Silfab 420W Solar Panel 66 Cell SIL-420-BG Elite Assembled in USA

  • Rated Power Output 420 W
  • Voltage (VOC)46.36 V
  • Number of cells66
  • Cell TypeMonocrystalline

Pickup on Wed, Jun 19 from Garner, NC

Delivery on Jun 24–27

In stock

REC 420W Solar Panel 132 Cell REC420AAPURE2

  • Rated Power Output 420 W
  • Voltage (VOC)49.1V
  • Number of cells132
  • Cell TypeMonocrystalline

Delivery on Jun 24–27

Find more options on clearance from $111/panel

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420W solar panels

420 watt solar panels are a good fit for businesses and homeowners alike. There are good reasons to explain why modules with this wattage are so popular. They generate more than enough power for residential use while being relatively easy to handle. Their size will not excessively restrict your freedom to position the modules the way you want, allowing you to make the best of the available space. The dimensions of the panels also permit installing them on top of most vehicles, so a 420 watt solar panel for RV is also feasible.

Specifications of 420 Watt solar panels

420W solar panels tend to weigh about 52 lbs, being approximately 82 inches long and 42 inches wide. Modules with this output rating are predominantly monocrystalline and usually have 72 cells or more.

The efficiency of 420W solar panels varies from 15 to 22% depending on the manufacturer. The modules may also have different backsheet and frame colors, and their overall aesthetics fluctuates as well. Depending on the circumstances, you might consider such qualities as weather resistance, degradation rate and temperature coefficient. Our store offers many options for every possible situation.

Features of 420 Watt solar panels

  • A 25 year warranty is the gold standard across the industry. However, some manufacturers like Silfab offer 30 years
  • Anodized aluminum is the metal manufacturers use to make modules’ frames. It is lightweight, strong and corrosion-resistant
  • Potential induced degradation (PID) is much less of a threat for modern modules
  • The efficiency of 420 watt solar panels sometimes reaches 22.8>#/p###
  • The size and weight of the modules offer more flexibility and help maximize useful space

The progress has not only boosted the efficiency and brought down the price. Many breakthroughs have been made to neutralize such issues as shading and poor performance on cloudy or extremely hot days. Thanks to this, you can now choose panels with the best performance under your particular conditions.

Our solar calculator can help you build a system tailored to your needs.

Average price of 420 Watt solar panels

A 420 watt solar panel price is set by the company that manufactures it. If you are looking for the highest efficiency for the price, many Chinese manufacturers offer good quality models that meet this criterion. If quality is something you place above all else, there are many European, Japanese and Korean brands that make it a priority. As a rule, their products are on the expensive side. You also have a third option – the panels made in North America. They could cost you a bit less, but their quality is on the same level. These are just rules of thumb and there are plenty of exceptions. You can browse 420 watt solar panels for sale in our store.

Don’t hesitate to contact us if you have any questions. That’s how we do our business:

  • Operate warehouses both on East and West coast of the USA
  • Process orders within 24 hours and ship them within 48 hours
  • Deliver the equipment in 4-7 business days
  • Work exclusively with trusted manufacturers
  • Guarantee authentic products
  • Offer affordable prices

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