BougeRV N-TYPE 200-watt solar panels are made of N-TYPE solar cells. Compared to P-TYPE solar cells, N-TYPE solar cells add an advanced Industrial Tunnel Oxide Passivated Contact to the back of ordinary solar cells, this advanced technology allows the majority carrier to pass and restrains the minority carrier, so absorbs more light, making it low resistance loss and high voltage. | Bougerv | | 1PC 24V N-Type 16BB 200W Bifacial Solar Panel for RV Camping Boat Marine Curve Surface | Black | Best Buy