The range of solar panel from Zenot are built using German cells combined with a Maximum power point tracking (MPPT) regulator. By combining these together you can rest assure you are getting the best solar combination available on the market. From our Glass Solar panel to our Ultralight Solar panels they all use the same technology and platinum series MPPT charger regulator. Also included with every Zenot solar panel is a carry bag, 4 meters of cable and instruction, All backed with Zenot 2 year warranty.