Thought I will provide some clarifications about the subject
Just came back from a trip to China, purchased two Hakko FX-888D from Hakko's store in Shanghai (one genuine and one fake) fake one was purchased a electronics store close by. Thought I'll compare them both and with my genuine FX-888D in Australia. The one from Hakko's store is absolutely identical to my Australian version, except the one from China says 220V 50Hz/60Hz at the bottom of the panel. Inside the unit, however it actually says 220/230v/240v 50Hz on the transformer, my Australian one says 240v only. Absolutely a bargain from China, I paid $75 AUS dollars for. it. Interestingly, the fake one cost about half the price, "37 AUS dollars", inside the fake one, there is no MCU and control is analogue with a LM324. The ceramic heater seems to be different of poorer quality as it heats a bit slower as well. Oh yeah FX-888 retails a bit more in China then FX-888D, (except 5 dollars more)
From what I can tell, the "genuine" from Hakko China seems to identical to the Australian version, however the cheaper "locally produced" version still seems to be virtually the same (even down to minor details).
Just because some fx-888s might seem too good to be counterfeit. Well, to be honest the 37 dollar one I got was a damn good copy, for $37 dollars, I couldn't care less. Hakko is making huge profits by selling 220/240v versions at 2.5 to 3 times price then the 110V ones
I will upload some pictures I took while taking them apart.