I have also bought one of these from the same seller (Arctic Trader). The box was taped up so that you cannot see the labeling. When I opened the package, the invoice does not match the price that I paid (I paid 70.00, the receipt reads 22.25). AND they advertised that the box is factory sealed - how did this get in there? Hm... When I removed the power supply unit, the hakko brand logo was taped over by a "firesure" sticker. The sponge that arrived is about 1/3 the thickness of one that would be shipped with an authentic unit. Something's not right here... Anyway, I threatened them for a full refund, including shipping costs. They have not replied yet, as I have just sent it out... let's see how it goes.