Power Plug and Socket
In Malaysia the standard voltage is 240V and the frequency is 50Hz.
typical Malaysian wall plug with an off-switch
If you come from a country with the standard 2-pin Type C, E or F plug, you don't need a fancy adapter. This simple plastic adapter will do which is available for 1 Ringgit everywhere.
It even works without any adapter at all (left power plug). You just need a thin object like a pencil or the temple of your glasses to push down the plastic pin in the top middle hole while inserting the plug.