4. AUTOMATIC & MANUAL MODE What makes the difference between the FX and the other boxes is the possibility of choosing between two modes, a fully automatic and fully manual one. The automatic mode allows anyone to use the FX without worrying about Watt, Volt or the cartom used. Based on the ohm, FX automatically calculates the best performance by providing 5 levels ofpower, from lowest to highest. The selection of the level is made simple by the large screen and the user friendly interface. The manual mode is reserved for the most experienced vapers. The configuration of Watt and Volt is completely free, from 1V to 8V and from 7W to 30W. Both modes can use coils down to 0.3 ohms and configure the cut-off time and the coil protection.