Mamu - at best they = 1 pack of cigarettes. Typically it's 12-18 cigarettes per cartomizer. My first several packs of cartomizers in March all equaled a pack of smokes. Lately, quality seems to have dropped off a bit which is where the 12-18 comes into play. I also think this latest rash of less expensive cartomizers have been from a manufacturer other than Kanger. I've spoken to one supplier that is going back to the Kanger models due to consistency issues. He's hoping to stay in the $7-8 range for them. If I'm not mistaken, the Kanger cartomizers come in the blister packs, others are shipped in small boxes.
The 12-18 is more reasonable, but at least for quite a few of us, the cartomizers taste off/burnt in under 10 cigs worth. Right now, I'm not buying any more KR carts until I know the QC issue is resolved, or they drop drastically in price. The Greencig carts ( NHaler.com has them, no one else I've seen) are made entirely differently and don't start to burn up inside, but they are $$$.
More info here: (with pics)
http://www.e-cigarette-forum.com/fo...moke51-etc.html?highlight=burning+cartomizers