Welcome and glad you joined. The Sigelei functions from 10 to 213 w. nominal. First, I would build/buy a coil that functions with in that range comfortably (non sub or sub). Unfortunately, there are so many variables that it is very difficult to give a definitive answer. The type of nic (strength), juice type,PG/VG, state of health, power settings, among others, all play a roll effecting lung hit.