Unit of electrical resistance. Lower-ohm coils usually need more power and produce more vapor.
Printed coil ohms are the starting point for wattage and amp-draw math. Rebuildable users should measure a fresh build before they fire it.
Also called: resistance, coil ohms
WINDBAR tools for this term
Related terms
Ohm (Ω) questions
Why do lower ohms need more power?
At the same voltage, lower resistance draws more current (I = V/R) and produces more power (P = V²/R). That is why DL coils are often sub-ohm.
Should I trust printed ohms on a coil?
Printed values are factory targets. Rebuildable users should still meter a fresh build before firing.
Educational glossary for adults 21+ only. Not medical advice. Follow manufacturer instructions and local laws.