When you say lot numbers are in same color as rest of the printing your talking just about the amp and that is the way they come.but they should have been in 5to astrip pop out packsand on the packs the lots are stmped on with a purple ink if your ssound like what i just descibed dont worry they are 100%real tons up here in canada the only fake i have ever seen was a taller ampand they come loose not in the blister packs.