63 year old. Decided to try e cigs as an alternative to smoking. 30-40 a day smoker for 40+ years. As soon as I started using e cigs with 36mg nicotine, no more smokes .Nobody was more amazed by that than me. I now use 12mg nicotine nearly two and a half years later. I now use a 5 volt mod. I believe that it is essential for flavour and strength. One very happy camper.