This label states an AC input range and accepted frequency. It does not certify the wall plug, earth connection, cable, adapter or USB charging profile.
The key check
This label states an AC input range and accepted frequency. It does not certify the wall plug, earth connection, cable, adapter or USB charging profile.
| Item | What to read |
|---|---|
| Device | AC INPUT voltage, frequency, current and earth requirement |
| Adapter | Input/output plug variants, earth path and AC rating |
| Property | Exact socket, supplied voltage and condition |
What changes the answer
The INPUT line usually belongs to the AC-to-DC power supply, not automatically to the attached laptop or phone. A broad input range means the supply can accept those stated mains values when the other conditions are met. It says nothing about a detachable cord's plug shape or whether an adapter carries protective earth.
Decision table for this question
| Situation | Meaning | Next step |
|---|---|---|
| AC INPUT reads 100–240V 50/60Hz | Those printed mains values span common travel references | Check plug, earth and adapter rating |
| Only OUTPUT says 65W | This is a USB DC output number | Locate the separate AC INPUT line |
| A detachable power cord is used | The brick and cord have separate specifications | Check the cord's plug and rating |
Use this before plugging in
- Find the AC INPUT label on the exact appliance or power brick. Write down the stated voltage and frequency range.
- Confirm the actual destination outlet voltage and socket variant; a country reference cannot tell you what a particular room has.
- Trace the physical plug and protective earth through each adapter. Read the lowest AC current rating in the chain.
- If a condition is missing or the maker excludes the appliance, leave the setup unconnected and seek a rated alternative.
Common shortcut to avoid
A familiar plug shape or a broad USB wattage claim is not a substitute for AC voltage, grounding and load checks. The distinctions in the table above are screening data; they do not certify a particular hotel outlet or product.
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Questions travelers still ask
What if aC INPUT reads 100–240V 50/60Hz?
Those printed mains values span common travel references. Check plug, earth and adapter rating.
What if only OUTPUT says 65W?
This is a USB DC output number. Locate the separate AC INPUT line.
What if a detachable power cord is used?
The brick and cord have separate specifications. Check the cord's plug and rating.
Sources and scope
Electrical Safety First . Research reviewed 2026-11-01; no outlet measurement or hands-on product test. Send a correction