N-TYPE New Technology N-TYPE Technology Solar Cell, 25% Highest Conversion Rate. BougeRV N-TYPE 100-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 connected 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. Smallest Size, MAX POWER. 16BB cell design further improves the current collection capability, so the solar panels' service life will be longer. Increasing the cell receiving surface, and smaller size reduces the covered area by 13%