Q2 0.4 ohm, T6 0.2 ohm, M2 0.25 ohm, X4 0.13 ohm
The SMOK Tfv8 X Baby coils are available in four different styles
TFV8 X-Baby Q2 is a 0.4ohm dual coil with a wattage rating of 40w to 80w.
TFV8 X-Baby M2 is a 0.25ohm dual coil and is designed for use with 3.7v output as found on Stick V8 and Stick X8.
TFV8 X-Baby X4 is a 0.13ohm quadruple dual coil with a wattage rating of 30w to 70w.
TFV8 X-Baby T6 is a 0.2ohm sextuple dual coil with a wattage rating of 40w to 130w