XINPUGUANG 10W 12V Solar Panel Solar Trickle Charger Portable Battery Maintainer with Cigarette Lighter DC Alligator Clip Cable for RV Boat Cabin Tent Car Trucks Trailers

I ordered two of these after much research. I gathering materials for a special solar project which will replace small chemical batteries. Each unit works, and with analog/empirical testing, each unit putts out near 1 full amp in full sunlight. Shadowing on the long axis reduces power out but it still produces power, shadowing on the short axis will just about kill any power output. This will not affect my project but it could be a problem for some. I will wire mine in series to double the wattage which will suite my needs. These are listed as "Monocrystalline" with a prism lens type technology over the cells. For the price point these are a good buy if I get 75% of the published output. Can't speak to the life of each unit but my installation will be non-evasive. Happy experimentation.

Pros: great to generate electricity even under bulb light.Cons: so crispy that it was broken when I tried to lift it after being exposed under strong sunlight for half day and held it in the middle.

Its a nice panel. I got .6 Amps at 12.5v (7.5W) in full winter sun. I removed diode and got .7A at 12.5v (8.75W). Very thin, durable plastic encapsulation.

I was skeptical on how this would work but am happy to say that it really does the job. We have 6 collector cars and a vintage trailer. I wanted this to use on the trailer when the batteries are not plugged into the power station. But when one of our cars had a low battery and I connected this to that car. I waited 2 days and went out to try the car and, to my surprise, it started right up. I may have to pick up a couple more of these for the batteries in our cars.

I have used this to charge a battery on my sailboat. Forst of all the cheap connector corroded within a month outdoors. Either initially or shortly thereafter the output power even at full midsummer sunlight exposure has not even exceeded 1W (as measured with both a voltage meter and an average meter attached. Best reding was a little over 13V and just barely 50mA = 0.65 W. Far away from the 10W stated. Even shoe circuit current is just getting to about 100mA. For a 10W panel that should be in the 2-3A at least.Result after 1 season of giving it a good chance: A complete waste of money. The previous 10 years I used a $30 ridged thin film panel from Northern Tools and Equipment which worked great until I accidentally stepped on it.I guess there is a reason why good (semi) flexible solar panels cost significantly more than this garbage.I am not sure what warranty the manufacturer gives as information is hard to find and I could not find information how to contact them.