I would like to ask you,where are the above two models.Thanks

Just the color difference.

APD-1 is black, more common model.
APD-2 is champagne/silver.

Julien

Dear Julien,

Is the function the same？

Thanks
Fai Wu

They are identical except one is in black finish and other gold. I think the gold version is Japan only for 100V. Black ones have multi-voltage versions. Gold one are rare and a good match if you own an Ld-S9, R7G or HLD-X9.

Thanks for information

Well.. a good match cosmetically but as already stated; functionally the same. Otherwise, I would think mixing black with champagne would not bother many people.