Glossary
GaN charger
A charger built around gallium nitride (GaN) transistors instead of silicon. GaN switches faster and runs cooler, allowing chargers to be half the size and weight at the same wattage.
Gallium nitride is a wide-bandgap semiconductor that switches power at higher frequencies than silicon, with less waste heat. A 65 W GaN charger fits in the volume of a 30 W silicon charger.
Why it matters
- Travel. A single GaN brick can replace a laptop charger plus a phone charger plus a tablet charger.
- Multi-port chargers. GaN makes 100–200 W multi-port chargers pocketable.
- Efficiency. ~95% conversion efficiency vs ~88% for silicon.
What to look for
Real GaN chargers from reputable brands (Anker, UGREEN, Apple) are well-tested. The market is full of cheap "GaN" products that are actually silicon — verify with reputable reviews before buying anything over 65 W from an unknown brand.
Where this matters
Categories that use gan charger
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