The Eleaf iStick 30W Mod is a variable voltage and variable wattage device with sub-ohm vaping capabilities. Unlike previous iStick models to come before it, the iStick 30W is capable of reaching sub-ohm resistance levels, and is compatible with coil heads and atomizers with resistances greater than 0.4 ohms. The ability to function on a sub-ohm level gives you more flexibility and versatility than ever before - allowing you to pair the iStick 30W with a variety of different tanks and coil heads for a truly customized vaping experience. Voltage can be adjusted from 2V to 8V, while the wattage can be adjusted from 5W all the way up a maximum output of 30W. Equipped with passthrough charging capability, the iStick 30W allows you vape while you charge your device - even if the battery is totally depleted! In addition, a high-quality OLED screen displays voltage, wattage, battery level and resistance level information for your convenience.