The Aspire Cygnet 80W mod is powered by a single replaceable 18650 battery with a maximum wattage output of 80 watts. The Cygnet is compact, portable and supports Variable Voltage, variable Wattage and Bypass modes. It's simple in design but the functionality there is all there. This mod can accommodate a majority of tanks with minimal to no overhang. The Cygnet will fire at resistances between 0.1 and 3.5ohms and features a 0.86 inch OLED screen with a micro USB charging port. It also has a stainless steel flush mounted spring loaded 510 connector. As usual, Aspire has included a ton of safety features such as automatic cutoff, over discharge protection, overcharge protection, over heat protection, short circuit protection and battery reverse protection.