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If a device accepts only 110–120V and your destination supply is higher, plug fit alone is insufficient. Check the device and a suitable converter's instructions before using it. A device labeled for both supplies may need plug adaptation instead.
Adapter or converter?
Read the device's voltage input range. A plug adapter changes shape; a converter changes the supply for permitted equipment. “Universal travel adapter” does not establish voltage conversion. Choose equipment that actually provides the required conversion; plug fit alone is insufficient.
Check the actual appliance
Compare voltage, frequency, continuous power and startup requirements as applicable. Converter designs can exclude appliance types even when nominal wattage appears suitable. Do not assume a hair dryer, straightener, medical device or motor-powered product is supported without its exact instructions.
A documented example
The BESTEK 250W converter page and manufacturer manual illustrate checking a specific converter's supported connections and permitted loads. Use the exact variant's instructions; a similarly named model or another brand may have a different operating range. This example is not a recommendation for every appliance.
Ports, packing and alternatives
USB charging features and AC conversion are separate specifications. Count sockets and compare the combined load limit rather than multiplying that rating by socket count. Consider whether a compatible dual-voltage device or suitable local equipment would avoid carrying a converter.
Buying decision
Choose by the real appliance and documented converter limits, then compare plug adapters, packed size, warranty and current price. Do not rely on unsupported converter claims for EPICKA, Ceptics or another generic plug adapter. Follow both device and converter instructions.