An e-cigarette consists of a battery or mod + an clearomizer. A clearomizer consists of two parts: a container that holds the liquid (e-juice) and a coil head that heats the liquid to produce vapor.
Regarding coils there is the pre made ones, and the one that you wrap yourself.
- The pre made coil is the part of a clearomizer that is consumable and lasts usually 2-4v depending on how much you use it, and with what e-juice. When the taste and / or vapor decreases, it is usually time to replace the coil.
- An RBA coil is wrapped by yourself (or bought done), read more how to in this guide.
See below an example of a pre made coil:
See below an example of a coil you can wrap yourself, or buy already wrapped: