The Innokin Cool Fire IV looks sexy - and I mean it. Sleek and quality design makes it stand out of the crowds (in a good way!). It appears to be so much different to other box mods  - but it is still a one powerful box mod capable of 40W, with a 2000mAh battery that is able to fire down to 0.2ohm.  It fits right in the palm of your hand just slightly larger than an iStick 30W. It also has a cool feature - a on/off switch at the base!

So enough of the looks ( although there is a lot to look at!) and let's focus on the technical specifications. Cool Fire IV features:

  • 40W of power
  • Spring-loaded stainless steel 510 threading connection
  • On / Off Switch on the base
  • 3 Clicks lock / unlock feature
  • OLED Display
  • Vrms power regulation
  • Micro USB charging port "Vape while Charging"
  • Heat dissipation vents
  • Battery level indicator
  • Flip OLED orientation
  • 15 second cutoff timer
  • Lanyard hole
  • Operating Voltage: 3.0V~7.5V
  • Operating Wattage: 6.0W~40.0W
  • Built-in 2000mAh battery
  • Standby current: 100uA maximum
  • Maximum output wattage: 40W
  • Maximum output Current: 12A
  • Maximum output Voltage: 7.5V
  • Clearomizer Resistance: 0.3 Ohm (minimum)
  • Charging: Micro USB DC 5V / 1A
  • Available in: black, blue, silver, purple and red
Variable Voltage:
Voltage can be adjusted from 3.0 - 7.5 volts in .1 volt increments. 

Variable Wattage:
Wattage can be adjusted from 6.0 - 40.0 Watts in .5 watts increments.

Low Voltage Warning:
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:
Short Circuit/Atomizer Protection protects the device against shorted atomizers and will stop the unit from functioning in unsafe conditions.

The Innokin Coolfire 4 features automatic real-time atomizer Ohms detection. If the resistance of the atomizer is lower than 0.3 the Ohms bar will blink and the Innokin Coolfire 4 will not power on. 

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

Remembers last Voltage or Wattage setting:
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 iTaste Coolfire 4 is powered on. 

High compatibility 510 connector:
The Innokin Coolfire 4 510 threading is compatible all standard 510 clearomizers & atomizers including the iClear16, iClear16B, iClear16D, iClear30, iClear30B, iClear30S and the Gladius-M

Over Discharge Protection:

The Innokin Coolfire 4 monitors the battery voltage and will automatically power off if the battery is over discharged.

Puff Counter

Sounds impressive, doesn't it? It appears that Innokin have finally struck gold with this latest edition; there is very little not to like about it if anything at all! Great performance & design at great price. Let's have a look at it!
Innokin Cool Fire 4