Voltage in Malawi is 220 V, and 60 Hz. Plug adapters are available cheaply in Malawi. I plug my laptop straight into the wall supply (with a local adapter). I've had no problems, but some suggest using a transformer every time. Big transformers are best bought in the US and shipped on the container, but they are available here. Just expensive. Anything with a motor (mixer, blender, etc.) really needs to be 60 Hz, and in the States, everything is 50 Hz. There is no good way to convert the frequency here.
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