EFM 65W GaN Wall Charger - With Power Delivery and PPSEFM 65W GaN Dual Port Wall Charger White Get faster and more efficient charging in the home or at the office with the EFM 65W GaN Dual Port Wall Charger. GaN, or Gallium Nitride, represents the cutting edge in high end consumer charging products. Referring to the internal components, GaN's superior thermal and conductive properties enable higher operating power outputs in extremely dense and compact form factors. Less energy is also lost to heat