YOU SHOULD GET THE UTILLIAN 50 IF... If you're looking for a high-quality 510 thread battery that can give you great results without any complicated operations, the Utillian 50 is just what you need. It offers four different temperature settings, ranging from 2.6 Volts to 3.8V. You can easily see the current temperature range displayed by an LED at the bottom of the unit. With its intuitive design, the U50 is the ideal companion for those who are always on the go. THE PERFECT DRAW Utillian did a great job of creating a synergy with the features they included. It is designed to provide thick and flavorful clouds right from the start of your inhale until the very end. To get the most out of your sessions, you can use the preheat function by double-tapping the button and waiting for 3 to 5 seconds before starting your draw. Pairing the lower voltage of the preheat with the automatic draw activation makes every part of your session enjoyable.