While other class B and C cells will have obvious cracks. The grade of the cell determines the actual output of the solar panel. Compared to other 150W solar panels, our solar panel is about 8% smaller but it could power the same or even more, which allows you to install the solar panel on the limited roof of the RV/VAN/Trailer, so you can get more power in the limited space.
Power Source: Solar Solar Technology: Monocrystalline. 1pc Solar Panel(NOT Include MC4 Cable). The power output of the product is the data of the laboratory at a constant temperature and a constant light state. The actual output is affected by the brightness, temperature, and equipment load of the sun in the actual environment.Thank you for your understand. If item is defective after 3 months, you can still send it back to us. This item is in the category "Home, Furniture & DIY\DIY Materials\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Panels & Kits". The seller is "elega-56" and is located in this country: GB. This item can be shipped to United Kingdom.