High efficiency semi flexible solar panels. semi-flexible solar panel is the alternative solar module - lighter, thinner. It charges your on-board battery of your motorhome, caravan, boat or other vehicle automatically, silently and maintenance free. aluminum backing ,is much more flexible than comparable solar modules. Curved surfaces such as boat decks or caravan alcoves are easily mounted, . Potted junction box, for additional protection. -- Junction boxes are fixed on the back. Moncrytalline Back contact cells( efficiency above 20% -22%), Module efficiency 30% higher than conventional solar panel. --3mm thin, super lightweight. --Adopting transparent PVDF material on surface and high quality TPT back plate, Salt Corrosion and UV resistance, withstands hail, storm and other harsh weather. --Different Waterproof Connection box ( insert diode ). --Pre drilled eyelets in the corner with Stainless grommets, easy installation. --Bend rate from 10-90 degree. --application in RV, Golf car, Electric car, Yacht, boat, marine , Tent or backpack etc. Max Power(Pmax): 40Watts Max Voltage(Vmax): 18V Max Current(Imax): 2.22A Open Circuit Voltage: 21.6V Short Circuit Current: 2.44A Maximum System Voltage: 600V Number of cells: 38 Weight: 0.6KG Dimension: 560*410*3mm Cable 4 SQ MM with 90CM with MC4 Connector