Joyetech BF replaceable coil heads, fit for Cubis and AIO range of products.

• 0.5 BF-SS316, 20-30w, lung inhale. AIO compatible.
• 0.6 BF-SS316, 16-22w, mouth-to-lung inhale. AIO compatible.
• 1.0 BF-SS316, 12-18w, restricted lung inhale. Will feel weak in Joyetech AIO.
• 1.5 BF-KA1Clapton, 12-18w, mouth-to-lung inhale. Will feel very weak in Joyetech AIO.

• 1.5 LVC-KA1Clapton, 12-18, mouth-to-lung inhale. Not AIO compatible. Max VG compatible.
• 0.25 BF-SSNotch, 40-60w, lung inhale. Not AIO compatible. Max VG compatible.

With the exception of the LVC and Notch coils which perform very well with max VG, the standard Joyetech BF coils perform best between 60VG / 40PG and 75VG / 25PG. 

Being chimney coils, these have a tendancy to flood the chamber and spit liquid, particularly with thin liquids or when the tank is exposed to temperature or pressure changes. There are a few tricks to "fix" flooding and spitting: Hold down the fire button or do an exhale puff into the device to clear the excess liquid, or "Flick" the excess liquid out. Inhaling slightly harder will also disperse the excess liquid, but as the liquid settles back into the coil you may experience spitting again.