Are GaN Chargers Safe? What Every Buyer Needs to Know Before Checkout
Quick Answer: GaN chargers are genuinely worth buying — they charge faster, run cooler, and pack more power into a smaller case than silicon designs. But "GaN" is an efficiency specification, not a safety one. The vast majority of compact GaN chargers are Class 2 devices with no earth ground — their Y-capacitors still route leakage current to your laptop chassis. The only GaN charger that addresses both is a Class 1 design. MOKiN TrueGround is that charger.
📋 In This Article
You're on Shopee or Lazada comparing GaN chargers. The listings all say the same things — 65W, GaN, compact, fast charging, cool operation. What they almost never say is whether the charger is Class 1 or Class 2.
That one missing spec determines whether your MacBook Air, Dell XPS, ThinkPad, ZenBook, or HP Spectre x360 will tingle, vibrate, or buzz in your hands every time you charge it — and why, at Malaysia's 240V or Singapore's 230V mains voltage, the problem is roughly twice as bad as it would be anywhere else. Metal-bodied phones pick it up too. Here's what to actually check before you buy.
GaN efficiency is the same in both — the difference is whether leakage current goes to earth ground or through you.
What "GaN" Actually Means — And What It Doesn't
GaN stands for Gallium Nitride — a semiconductor material that switches electricity faster and loses less energy as heat compared to traditional silicon. That's why GaN chargers can deliver more power in a smaller, cooler case. At 65W or 140W, a GaN charger can be roughly half the size of an equivalent silicon charger from five years ago.
What GaN does not specify is safety class. "GaN" describes the transistor material inside the charger — it says nothing about whether the charger has an earth ground pin, how leakage current is handled, or whether you'll feel electricity on your laptop chassis.
A GaN charger can be Class 1 (grounded, safe leakage path) or Class 2 (ungrounded, leakage through you). The vast majority of compact GaN chargers on Shopee and Lazada are Class 2 — and their listings won't tell you that.
The Safety Question Nobody Puts in the Listing
Every modern charger — GaN or otherwise — contains small components called Y-capacitors. These bridge the high-voltage primary side of the charger's circuit to the low-voltage output side, and they're mandatory for passing electromagnetic interference (EMI) regulations. The side effect is a small but continuous leakage current that flows from the charger's internals to whatever you're charging.
In a Class 2 charger (2-pin plug, no earth connection), this leakage current reaches the device chassis and has nowhere safe to go. The circuit is open to earth — so the current takes the next best path, which is through your body. You feel it as a tingle, vibration, or buzz on the laptop lid or phone frame. In a Class 1 charger (3-pin plug with active earth), the leakage current flows directly to earth ground through the wall socket before it ever reaches the device. You feel nothing.
⚡ The 0.25 mA Threshold
IEC 62368-1 caps Class 2 charger leakage at 250 µA (0.25 mA) — a limit set to prevent physiological harm, not to prevent sensation. Most people feel AC current from just 40–50 µA. A fully certified, legal Class 2 GaN charger can produce 200+ µA at Malaysia's 240V — certified safe, clearly uncomfortable.
How to Tell Class 1 from Class 2 at Checkout
Most Shopee and Lazada listings don't disclose the safety class. Here's how to tell:
- Count the pins: A 2-pin plug (live + neutral only) = Class 2. A 3-pin plug with an active earth pin = Class 1. Note: some Class 2 chargers sold in Malaysia use a plastic dummy earth pin to open the BS 1363 socket's safety shutters — this pin carries no electrical connection and provides no grounding protection. The charger is still Class 2.
- Look for the Class marking: Legitimate Class 1 chargers carry a Class I marking (square inside a square symbol = Class 2; no symbol or explicit "Class I" = Class 1 with earth). Check the charger body, not the box.
- Check for SIRIM certification: SIRIM-certified chargers sold in Malaysia have undergone local safety testing. Class 1 certification requires a functioning earth pin and verified leakage current routing.
- Ask about ground continuity: If a seller can't confirm the earth pin is electrically connected — not plastic — assume it's Class 2.
Why Malaysia and Singapore Buyers Feel It More Than Anyone Else
Leakage current is directly proportional to mains voltage. The physics: I = V × 2πfC, where V is the supply voltage, f is frequency (50 Hz here), and C is the Y-capacitor value. Malaysia operates at 240V, Singapore at 230V. The United States runs at 120V. This means:
At 120V (US): A typical Y-capacitor produces 40–80 µA leakage. Barely perceptible on dry skin.
At 230V (Singapore): Same capacitor — 80–180 µA. Clearly noticeable tingle on clean fingertips.
At 240V (Malaysia): Same capacitor — 90–250 µA. Strong vibration, particularly on tiled floors and in humid conditions.
Malaysia's tropical humidity makes it worse still. Moisture reduces skin resistance, increasing the current that passes through you at any given voltage.
A person charging a laptop on a tiled floor in a humid Malaysian room will feel more leakage than someone on carpet in an air-conditioned office — even with the same charger. This is why the tingling from compact GaN chargers is a distinctly Southeast Asian frustration: the physics of the region's power grid amplify a problem that barely registers in lower-voltage countries.
The One GaN Charger That Solves Both Problems
MOKiN TrueGround is engineered specifically for this gap — a compact GaN charger that is also Class 1 grounded. By incorporating a true earth ground pin into a GaN form factor, TrueGround gives the Y-capacitor leakage current a direct, low-impedance path to earth through the wall socket's grounding conductor. The leakage bypasses the device chassis entirely. The tingle disappears permanently — not because the Y-capacitors are removed (they cannot be), but because the current has a better route than through you.
Available in 20W, 33W, 45W, 65W, and 140W, TrueGround covers everything from a phone top-up to a MacBook Pro M4 or a professional workstation. The grounding architecture adds no bulk beyond the 3-pin plug — GaN fast-charging speed is unaffected. SIRIM-certified for the Malaysian market.
Frequently Asked Questions
Can my phone tingle from a GaN charger too?
Yes. Metal-bodied phones — iPhone models with aluminium frames, Samsung Galaxy flagship builds — can carry the same Y-capacitor leakage current from a Class 2 GaN charger. The sensation is usually less noticeable than on a laptop because phones are smaller and held differently, but the root cause is the same: no earth ground, leakage current on the chassis. A Class 1 charger like MOKiN TrueGround eliminates leakage from both laptops and phones in the same charge session.
Does higher wattage mean more leakage current?
Generally, yes — higher-wattage chargers often use larger Y-capacitors to meet stricter EMC requirements at higher power levels, which can produce proportionally more leakage current while still remaining within the 250 µA IEC 62368-1 limit. This makes Class 1 even more relevant for high-wattage laptop chargers. MOKiN TrueGround's 65W and 140W models are Class 1 grounded GaN chargers — their earth-ground pin routes Y-capacitor leakage to earth regardless of wattage.
Is MOKiN TrueGround available in Singapore?
Yes. MOKiN TrueGround is available via mokin.my and through Shopee and Lazada, serving both the Malaysian and Singaporean markets. Singapore operates at 230V / 50 Hz — close enough to Malaysia's 240V that the leakage current advantage of Class 1 is equally significant for Singapore users. MOKiN TrueGround's three-pin UK-style plug (Type G BS 1363) is compatible with both Malaysian and Singaporean wall sockets.
MOKiN TrueGround — eliminate it, don't tolerate it
Class 1 grounded GaN charger. Leakage current routed safely to earth — before it reaches you. Choose your wattage:
Last Updated: May 12, 2026
