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Innokin Cool Fire IV - 40W

Model:  INCF4BK

The Innokin Cool Fire IV - 40W is a 6 to 40W and 3 to 7.5V box mod with a very attractive design and outstanding performance. Available in four colours - red, silver, blue and black - the Cool Fire IV looks like no other Innokin's box mod and stands as a prime example of the brand's effort to broaden their offer of box mods in terms of style without sacrificing quality or performance.

Standing less than 4'' (86mm) tall, the Cool Fire IV includes a very powerful 200mAh battery and a host of features for more enjoyable and safer vaping experience: OLED display, variable Wattage and Voltage, short-circuit protection, 15 seconds cutoff, over-discharge protection, battery level indicator, 'vape while charging' function and much, much more. This box mod can be used with most clearomizers and atomisers by Innokin and is a perfect partner with all iSub tanks. However, it is also compatible with clearomizers and atomisers by other brands.

Available in 4 vibrant colours. Just choose yours using the drop down menu below.

NOTE: Does not come with tank.

Read our Battery Safety Guide

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  • 1 x Innokin Cool Fire IV 40W Box Mod
  • Available in 4 Colours
  • 1 x USB Cable
  • 1 x Ego Adaptor
  • Operating Voltage: 3.0V-7.5 V
  • Operating Wattage: 6.0W-40W
  • Battery: 2000mAh
  • Standby current: 100uA max
  • Maximum output Wattage: 40W
  • Maximum output Current: 12A
  • Maximum output Voltage: 7.5 V
  • Charging: Micro USB DC5V/1A

*FREE 1st Class Standard Delivery is offered on all orders shipped to a UK mainland address.

For all our other delivery options please CLICK HERE

*This service is not recommended for large value orders or items unable to go through a letterbox. Same day Dispatch if ordered before 3pm.

The Innokin CoolFire IV: Fires 6 - 40W! / 3 - 7.5 V with a Maximum Output of 14.5Amp and is only 86mm tall! Incorporates a 2000mAh hour battery a Vape Timer, Puff Counter, Integrated Short Circuit protection, Left/Right Screen Orientation, 15 Second cutoff & more. RMS DC current accurate to a power deviation of 0.5W and fires resistances from 0.2 - 3.1Ohm.

Easy to use: 3 Buttons for Total, Precise, and Comfortable Control.

Always Ready: Charge the CoolFire IV with a standard Micro USB cable and vape at the same time with Innokin’s ‘Vape while charging’ technology.

The Cool Fire IV has a flush 510 connection with a spring loaded positive pin, durable stainless steel threading, an included ego adaptor. The Cool Fire IV has a variable voltage range of 3.0 - 7.5 volts adjustable in .1 volt increments and a variable wattage range of 6.0 - 40.0 Watts, adjustable in .5 watts increments.

The Cool Fire IV uses Vrms DC current and is very accurate with a power deviation of 0.1Watt. The full 40 Watts is precisely maintained between resistances of 0.3 to 2.5 Ohms. There is no wasted power and exact accuracy means you are always vaping the power level that you choose. Vrms provides superior precision in delivering the exact wattage Ohm's Law requires and stable power means better vapour.

The high quality OLED screen looks great and clearly displays the resistance of the attached tank & coil, voltage, wattage and also accurately shows the remaining battery charge.

The Primary Features of The Cool Fire IV

Battery Level Indicator:
The Cool Fire IV battery capacity is displayed via green, yellow and red LED lights.
Green = Almost fully Charged. When the Cool Fire4 is fully recharged the LED light will power off.
Yellow = Half Power.
Red = Low Power. Charge the Cool Fire IV

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

ON/OFF Battery Switch

SAFETY :15 second cutoff, FLIP OLED SCREEN ORIENTATION, Low Voltage Warning, Short Circuit/Atomizer Protection, Over-Discharge Protection, ‘Vape while charging’ Technology - Remembers last Voltage or Wattage setting!

  (12 Reviews)
Innokin iSub Tank - 4ml TankInnokin iSub Tank - 4ml Tank
Price:  £32.99
List Price:  £49.99
Saving Of:  £17.00 (34%)
(Inc. 20% VAT)

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Average Rating (12 Reviews):  
Write a Review and share your opinions!

Innokin coolfire iv
Saturday, 1 October 2016  |  Richard

Great mod. Good price. Postage excellent. Highly recommend.

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5 of 6 people found this review helpful.

cool fire IV
Sunday, 25 September 2016  |  Michael

Great product add the isub tank and isub coils 0.5 and you have a kit that you can chain vape all day. Price WAY LOWER than local shops if youre gonna buy this buy it here

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3 of 4 people found this review helpful.

Saturday, 16 July 2016  |  James

Love it. Best I've used so far and works great with the iSub G tank. Highly recommended. Also, great service from Vapourlites with fast delivery.

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7 of 9 people found this review helpful.

Cooĺfire IV
Tuesday, 24 May 2016  |  Raymond

Very pleased with product easy to use would reccomend to anyone.

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6 of 8 people found this review helpful.

Coolfire IV
Sunday, 8 May 2016  |  Roger

Good kit, decent battery, a little fiddly to change settings but no biggie.

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5 of 6 people found this review helpful.

Very good
Sunday, 6 March 2016  |  Graham

Delivered within 2 days.
I am using a 0.5 ohm isub tank. Excellent flavour and cloud a 30 watts. The only issue is, the battery doesn't last all day. 5 stars otherwise.

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5 of 7 people found this review helpful.

Top notch
Sunday, 21 February 2016  |  Adam

Being new to e-cigarettes in general, the Innokin iTaste was the first vape pen I bought and soon realised it wasn't what I was looking for. A friend recommended a few of Innokin's other products and my eyes fell on the Cool Fire & after researching for a (whopping) 10 minutes I decided this was the box for me. I also settled with an iSub tank.

The pros:

- Well built, sturdy box.
- Easy to assemble.
- Clear on-screen information (volts, watts, Ohms)
- POWERFUL! (especially coupled with the iSub)
- Wide range of voltage (3.0v to 7.5v with noticeable changes in vapour quality)
- Simple to use for even a beginner like myself.

The cons:

- Slightly heavy in the hand (preference)
- On/off switch rattles a little.

Having used it for a week, this is as big as the con list gets!

So as you can see I really rate this box; it's been easy from step one and took me less than a day to find out my preferred settings and airflow settings on the tank. I have been happily introducing this little thing to my friends all week, and I would wholly recommend this to people looking for a cheaper e-cigarette to set them on the journey to being free from nicotine.

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8 of 11 people found this review helpful.

Innokin cool fire IV
Saturday, 19 December 2015  |  Janet

Worth every penny spent! Speedy delivery too. Very impressed and highly recommend this product

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4 of 6 people found this review helpful.

What do I do.
Monday, 12 October 2015  |  Barbara

Being 72 and disabled, but trying to keep up to date on the latest technology, I have found it difficult to understand the instructions that come with the product instructions. Sorry my fault.

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5 of 7 people found this review helpful.


Hi Barbara, please contact our customer care team, they will run through with you, or if local, pop into one of our VAPE stores.

Coolfire 4
Saturday, 5 September 2015  |  David

Very easy to use, best if used at 25watts upwards depending on preference. Very long charge with battery indicator displayed on the screen.
I am using an i sub tank at 25 watts which delivers an amazing vape with tons of cloud, literally cannot see through it.
If you are using a vape pen I would recommend this if you are looking to upgrade as the whole experience is totally different and a million times better.

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12 of 13 people found this review helpful.

Read all 12 customer reviews...

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