Quote Originally Posted by irving2008 View Post
the diode is purely for reverse polarity protection.
I assumed that's what it was for but as stated I am no expert.
Quote Originally Posted by irving2008 View Post
Too many mistakes would give me quality concerns...
Spelling mistakes are fairly normal for cheap Chinese stuff (you should try and read the manual), but they do not make me worry about the quality.(Touch wood, so far, the electronics have been good)

Regards,

Les