What Makes a Charger “GaN”?
Most wall chargers built before the last few years used silicon transistors, which generate a lot of heat once you push past 20-30W. Gallium Nitride (GaN) is a different semiconductor material that switches power more efficiently, which is why GaN chargers can pack more wattage into a noticeably smaller shell without turning into a hand-warmer. Almost every fast charger in the UGREEN Nexode line, along with several UNITEK and MOMAX models in our chargers category, is built on this technology.
The UGREEN 70817 GAN PD FAST CHARGER 65W (Rs. 9,787) is a good example of what GaN buys you: a single USB-C port pushing 65W of Power Delivery, with support for PD 3.0, QC 4.0/3.0/2.0, PPS, AFC and FCP protocols, all in a compact EU-plug design. Step up to the UGREEN 70866 PD 66W GAN FAST CHARGER 2XC (Rs. 13,160) and you get the same GaN efficiency spread across two USB-C ports, so you can charge a laptop and a phone from one plug – with built-in protection against over-voltage, over-current, overheating and short circuit.
GaN Isn’t Just for High Wattage
It’s tempting to think GaN only matters once you’re above 60W, but it shows up in smaller chargers too. The UGREEN 15550 Nexode RG 30W USB C GaN Charger (Rs. 7,685) uses the same underlying technology in a compact, robot-styled design, and still supports PD, PPS and QC fast-charging protocols for phones, tablets and earbuds. On the travel side, the UNITEK P1119A 35W GAN Power Delivery Fast Travel Charger (Rs. 5,938) is built specifically to be compact and portable, with GaN efficiency keeping the size down while still offering 35W of Power Delivery output.
In practice, this means you no longer have to choose between a charger that’s fast and one that’s small. A GaN charger rated for 65W or even 66W can genuinely be pocketable, which is why you’ll see GaN show up across our travel chargers, desktop multi-port chargers and single-port daily chargers alike.
Frequently Asked Questions
Is a GaN charger safe to use with older, non-PD devices?
Yes. GaN chargers like the UGREEN 70817 and 70866 negotiate charging speed with the connected device using standard protocols such as PD and QC, so an older phone or accessory will simply draw the power it’s designed for rather than being force-fed 65W.
What’s the actual difference between the UGREEN 70817 and 70866?
The 70817 (Rs. 9,787) is a single USB-C port charger rated at 65W, while the 70866 (Rs. 13,160) adds a second USB-C port and is rated at 66W total, letting you split power across two devices at once instead of charging just one.
Do I need a GaN charger specifically for travel?
It helps. The UNITEK P1119A 35W GaN Power Delivery Fast Travel Charger (Rs. 5,938) is built around GaN precisely so it can stay compact and portable while still delivering 35W, which is harder to achieve with older silicon-based designs.
Does a higher-wattage GaN charger mean faster charging for every device?
Only up to the limit your device supports. A charger’s wattage is a ceiling, not a guarantee – your phone, tablet or laptop will only draw as much power as its own charging circuit allows, regardless of whether the charger is rated for 30W or 66W.
Leave a Reply