HV-801,,,,, I've been using these new HV-801 Atty's since they have come out. Not one has burned out yet and its been probably 2months on the same two I use in rotation with my flavors of choice, they also hold way more juice than any other Atty's so less refilling, also found I dont have to drip with them either and I was a total dripper before using these, I think it's just the bigger is better thing going on here for me, The HV seems to really work wonder from 6v-7.4v on all my mods including my GGT, Silver Bullet, and my GLV, all of them vape clouds of vapor and the taste seems to also be far superior.... just my 2cents