The new CoolFire IV Plus & iSub APEX Kit packed with 70 Watts of output that can fire down to 0.1 Ohm. It has a long lasting 3300mAh battery, and is designed to be a solid all-day vaping device. Curved to fit perfectly into your hand, with an ergonomically placed power button, these device are a true pleasure to vape. The Kit includes the best selling iSub APEX tank to match, with it’s quick & clean top-fill design to create a perfect vape. These kits also include a high quality charging cable, a replacement iSub coil and Derlin drip-tip.

Variable Voltage can be adjusted from 2.0 - 7.5 volts in .1 volt increments. Variable Wattage can be adjusted from 6.0 - 70.0 Watts in .5 watts increments. There is a Low Voltage Warning so the red LED and Battery bar will continue blinking when the battery capacity is lower than 3.3V and the device will automatically power off. Short Circuit/Atomizer Protection protects the device against shorted atomizers and will stop the unit from functioning in unsafe conditions.

The Innokin Coolfire 4 Plus is recharged with a Micro USB cable. When plugged into a power source the Innokin Coolfire 4 Plus can also be vaped and charged at the same time with Innokin Technology's "Vape while you charge- pass-through technology".

When the Innokin Coolfire 4 is turned off it will remember the current voltage or wattage setting and it will retain the setting when the Innokin Coolfire 4 Plus is powered on.

The Innokin Coolfire 4 Plus monitors the battery voltage and will automatically power off if the battery is over discharged and lastly includes a Puff counter!