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40 Watt Black Frame Mono-crystalline Solar Panel and Battery Charger
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Tools & Hardware > Battery Chargers > Item 58
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40 Watt Black Frame Mono-crystalline Solar Panel and Battery Charger
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by Solar Tech
Sales Rank: 6225
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List Price: $399.95
$239.95
At Amazon
on 11-29-2008.
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Features
Assembled professionally with Suntech Mono-crystalline solar cells in a worldwide shortage
TUV certified and IP65 rated junction box with cable with MC connector
By-pass diode to minimize power drop caused by shade
Anti-reflective high transparency tempered glass
Class II black color coated aluminum alloy frame
Product Description
This is a 40 Watt Mono-crystalline Portable Waterproof Solar Panel in black color (very rare) aluminum frame to charge your 12V battery or to run your science projects. The rare black color frame looks very nice. It is in a factory new package and is 100% brand new. The solar panel is assembled by Suntech, one of the highest quality solar cell makers. It is also waterproof. The working voltage for charging is 18V. If you need to use it to charge a car battery, you may need a charge controller to prevent the battery from overcharging. Connections included: alligator battery clamps. There are three types of Solar Cells on the market. All our Solar chargers use the best - Mono-Crystalline Solar Cells. Amorphous or Dual Junction Solar Glass are the cheapest but are only 7% energy efficient and have 5 years service life. They are big and heavy. Poly-Crystalline have 25 plus years of service life under direct sunlight and are 13% efficient. Mono-Crystalline have 25 plus years service life and are up to 20% efficient. This is the same type used in solar car racing. This type of solar cell is now in a worldwide shortage because only a few companies can manufacture this solar cell.
Owner Reviews, Ratings, Comments and Criticism
This is the cheapest mono-crystal panel I've found, and it works as expected. However, remember (or learn) that when the sun shines full, you will generate the most power..... on a cloudy (or not full sun day) you will generate very little. If you have alot of full sun, go for monocrystal (ages slowest). However, if you have shady area or often cloudy, go for amorphous (ages faster). I have both types and so generate power every day. Monocrystal panels generate more per square inch so basically take LESS space to do the job. This panel is a good investment.
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40 Watt Black Frame Mono-crystalline Solar Panel and Battery Charger
Available from Amazon
Price: $239.95
Updated on 11-29-2008.
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