Yes, i'm sure it's just a plug.
Unless you do some tests you cannot be sure of that. There may be a current limiting capacitor mouded into the plug. With a 4 watt load that would be low cost way to control the power.
It could look exactly the same as a normal plug as a cost cutting manufacturer would be able to use the same mould for both plugs with capacitor and normal plugs wihout capacitor.
What would you suggest then? Would it be better to just chop the Chinese plug off and wire up to a UK plug with a 3amp fuse or plug the Chinese plug into my travel adapter which has a 3amp fuse in?
I have virtually no experience with a Chinese appliance or electrics but I'm slightly confused which way to go now?