if I have many days of abstinence from use, the 1st night keeps me awake until late. If there is daily use, I immediately fall asleep with beautiful dreams
Stay away from Utillian 620/or fenix pro, same item with other name. My 1rst and 2nd vaporizer (replacement) had the same issue with buttery after a year of use... great champer design but for trash. After this again in my favorite style, still exist with 10 years guarrantee, smono 3 from eu...