40 Watt Black Frame Mono-crystalline Solar Panel and Battery Charger
Amazon.com Price: View Sale Price (as of 2010-07-30 23:34:27 GMT) Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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.
Product Details
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
Video Reviews
No video reviews found for this product.
Customer Reviews
Monocrystal VS. Amorphous
Review Date: March 2, 2008
Reviewer: David M. Gammon, western Indiana
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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No video reviews found for this product.
Monocrystal VS. Amorphous
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