Niger to Japan: No adapter needed
Your Niger plugs fit Japan's sockets directly -- no adapter needed for the shape. Voltage differs too (230V vs 100V) -- only plug in devices rated for both, or use a voltage converter, not just a plug adapter.
Your Niger plugs fit Japan's sockets directly -- no adapter needed for the shape. Voltage differs too (230V vs 100V) -- only plug in devices rated for both, or use a voltage converter, not just a plug adapter.