A plug shape is not a rating. Before you list a mains-powered product for a market, get a photo of the rating label on the exact unit you will receive and read the input voltage, frequency and wattage off it: a universal input such as 100–240 V, 50/60 Hz leaves only the plug to settle, while a single-voltage unit fitted with your market's plug is the trap. If the label is wrong for the market, ask for the market version of the same model, not a converter.
Will it work in my customer's country if the plug fits?
Not on the plug alone: the plug is the shape of the pins, the rating label what the unit was built to run on. North America runs at 110–120 V and 60 Hz, the UK and most of Europe at 220–240 V and 50 Hz, and a quote line that names only the plug says nothing about which side the unit was built for.
In the week to 2 October 2026, several separate sellers asked about the plug, the voltage or an included adapter for the market they sell into. Naming the plug in the first message, as one seller sourcing a plug-in home camera did, is the right start; the voltage and frequency belong on the same line.
What should the rating label say for my market?
Three figures: input voltage (V), frequency (Hz) and power (W). A range such as 100–240 V with 50/60 Hz is a universal input, common on chargers and external power supplies. A single figure, 220–240 V or 110–120 V, has to match the market.
Ask for a photo of the label on the unit itself, not a spec sheet, before you order: a measurement or photo you need is agreed before ordering, and the check when goods reach the Guangzhou warehouse is against the reference you approved, not a full or laboratory test.
Does 50 Hz or 60 Hz matter?
Yes, for anything with a motor, a fan or a mains-timed clock, because frequency changes how those parts behave. A unit rated only for 50 Hz is not a 60 Hz product, even when the voltage matches.
In late September 2026, a seller sourcing a small plug-in appliance for a 60 Hz market asked for the voltage, frequency and wattage before buying. The voltage read back matched and the frequency read 50 Hz, so the seller turned that unit down and asked for a 60 Hz version; one was quoted the same day, and its label photo is what to get next.
Is an adapter in the box enough?
A pin adapter changes the shape of the plug, not the voltage. It is enough only when the label already matches the market, as a universal input does.
On a product that runs from its own external power supply, that supply's label is the one to read. One seller asking us to quote a bedside electronics product for several European markets wanted to know whether a suitable power adapter was included, and the quote confirmed a matching one. Also get the adapter's plug type and input range on the quote line, which names what is included.
Can I get the same model built for my market?
It can be: a factory may build one model in both voltages, so ask the supplier for the market version first; if it does not make one, ask whether another factory makes the model in your market's rating.
A converter in your customer's box is a second product to source, ship and support. A different model goes through a safe substitution process before you list it.
Does a battery or the destination change how it ships?
It can: whether a cell is inside decides which lanes will carry it, so get the supplier to state it in writing. For a device with a battery and a mains plug, ask whether it runs while plugged in.
Spec and route are separate questions: when one seller asked whether an order failed on the address or the plug, it was the address. Settle the label for the product, then the lane for the destination, as in how a destination lane gets decided.
What should I have in writing before I list it?
Four answers, in writing, before you approve the quote:
- A photo of the rating label on the exact unit: voltage, frequency, wattage.
- The plug type, or the included adapter and the plug it carries.
- Whether there is a battery inside, and whether it runs while plugged in.
- The name of any conformity document that exists for that unit.
Documents carry commercial conditions of their own, set out in why product certificates come with an MOQ. The manual's language goes on the same line as the plug, as in the plug and the manual on the product line.
Before you list, get the label photo of the exact unit; if it passes, list with the plug named.
Want a product checked before it ships?
Tell us what must be verified on WhatsApp (+86 178 4666 9989). We can build the product, packaging and quantity checks into the fulfilment process.
Request Quality Check on WhatsApp →