everActive GaN SC-390Q wall charger with USB QC3.0 socket and USB-C PD PPS 30W What is a GaN charger? GaN technology is a completely new quality in efficient chargers. Gallium nitride is a new innovative semiconductor material that replaces traditionally used silicon. Replacing the silicon with gallium nitride allowed for higher voltage conduction and higher power transfer, so less energy is lost to heat. As a result of this change, the charger based on GaN technology can significantly change its dimensions and weight, and the charging itself is faster and more effective. In order to use the potential of the new technology even more effectively - the PCB in such a charger can be multidimensional to fully use the volume of the housing. The highest quality insulating materials ensure the highest level of safety and protection against electric shock.