altE Poly 20 Watt 12V Solar Panel

altE Poly 20 Watt 12V Solar Panel
altE Poly 20 Watt 12V Solar Panel
$30.00 List price $114.00

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Item code Brand name Model number Volts Watts Cell Tech Connector Type
ALT20-12P AltE ALT20-12P 12V 20W Polycrystalline Junction Box

Every wonder how a solar panel works?  
Or why you need them pointing straight at the sun?  
What if there is the smallest amount of shade?  
Off Grid Solar System Demonstration  

Polycrystalline 20W 12V Solar Panel

altE solar panels are designed specifically for use in OFF THE GRID applications. This means YOU, with your friend the sun, can generate your own electricity! You don't need to rely on the electric company. A 20 watt solar panel is small, but can be useful in keeping a deep cycle battery topped off or charged (a 'trickle charge') , so you can then have power after dark, or when the grid goes down. These solar panels are lightweight (only 6 pounds!) and portable, so you can take them on the road with you, camping or hiking for example, to power your portable electronics like cell phones, games etc. Additionally, they are manufactured in accordance to ISO9001 standards and certified by IEC and CSA/US to assure electrical safety compliance.

So back to generating your own, FREE electricity - this is one of the biggest advantages of solar energy. Telling all your friends that you are dabbling in off grid living increases your cool factor significantly. And once you start small with this solar panel, you'll be looking around the house or cabin to see what else you can power. This 20 watt solar panel consists of 36 polycrystalline solar cells, and can works in temperatures as low as 49 degrees below zero and as high as 185 degrees Fahrenheit - a wide range gives you flexibility in any environment. And with the sturdy aluminum frame, and 3.2mm tempered glass, the durability of this module allows for long term usage and worry-free off-grid living.

Be sure to check out our videos to the right to get you started - how solar energy works, how to wire solar panels, the best orientation, and a full off-grid solar system demonstation. altE is the best place to start learning about the many advantages of solar energy. We're here to help you make renewable do-able!

Also be sure to read our blog "How Do I Read the Solar Panel Specifications?"


  • Off-grid power for cabins, vacation homes, RVs, campers, remote monitoring systems, and remote villages
  • Solar water pumping and solar-powered refrigerators
  • Remote WiFi and wireless repeaters

  • altE modules offer 3 year workmanship/25 year performance warranty
  • Certifications: IEC61215, CSA/US (certified for both US and Canadian markets, to the applicable US and Canadian standards), TUV (European)
  • Manufactured in accordance to ISO9001 standards and features
  • Junction Box is IP 65 rated enclosure (complete protection against environmental particles and a good level of protection against water projected by a nozzle)

    Open-Circuit Voltage (Voc) 22.3V
    Optimum Operating Voltage (Vmp) 18.0V
    Short-Circuit Current (Isc) 1.21A
    Optimum Operating Current (Imp) 1.11A
    Maximum Power at STC* (Pmax) 20Wp
    Operating Temperature -45°C to 85°C
    Power Tolerance +/- 10%
    Nominal Voltage 12V
    Maximum Series Fuse Rating 2A
    Maximum System Voltage 600V
    Module Efficiency 11.7%

    * STC: Standard Test Conditions - Irradiance 1000 W/m2, Module temperature 25 ºC, AM = 1.5


    Solar Cell Polycrystalline (blue cells)
    Number of Cells 36
    Dimensions 490 x 350 x 25mm (19” x 13.8” x .98”)
    Weight 2.7kg (6 lbs)
    Front Glass High-transmission 3.2mm tempered glass
    Frame Clear anodized aluminum frame
    Connector Type Junction Box (+/red terminal on right; -/black terminal on left)


    See more technical information in the Product Documentation section above!

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