web analytics


Innokin Cool Fire 4 40W Review



In Short: This kit contains:
  • 1 x Innokin Cool Fire 40W battery module
  • 1 x eGo/510 Thread Adapter
  • 1 x Micro-USB Charging Lead
View Product

Battery Life



Value For Money

Total Score



Great battery life
Superb performance
Ergonomically designed
Excellent vape
Great value for money
Sub-ohm device
Vape whilst charging
Best box mod under £40

Our Full Review

Product Update

There is an updated version of this model. Please see the Innokin Cool Fire 4 (IV) Plus.

Innokin are well regarded as one of the best in the business for providing high performance, budget friendly box mods.

The Cool Fire 4 is a cracking example, providing just enough power for a seriously good vape without risk of burning through those coils at breakneck speed!

One of the most common mistakes cloud chasers find is that sometimes more means less.

This 40W unit will, on the other hand, deliver not just great sub ohm vaping but also be energy – and crucially – battery efficient.

It’s a great little package, and here’s why.

Absolutely Gorgeous Design

Cool Fire 4 Box ModRemember back in the day when folks carried their e cigs in a smart metallic case?

The Innokin Cool Fire 4 is pretty much the same, just without the disease, stink and impracticality.

It’s smaller than a pack of 20, absolutely ideal for pocket or handbag carry and best of all super lightweight.

Throw in a smart design that would put many more expensive ranges to shame, and we have an impressive, streamlined mod that absolutely oozes class and design quality.

Under The Bonnet

While some may think the 40W maximum output is a little on the low side, fact is that for the vast majority it’s more than enough.

There’s also the rather important matter of the top of the line battery.

2000mAh – pretty much unheard of in budget box mod vaping – provides reliability and fantastic charging life.

Just to make certain that it doesn’t get ‘overcooked’ via extensive use, there’s also built in atomizer and short circuit protection.

All of these features are designed to be totally compliant with EU safety regulations, and are as fail safe as it gets.

Top Tier Sub Ohm Vaping

Impressively this mod gets as low as 0.3 Ohm – making it fantastic for the most demanding user.

Even better it can be configured with just a few taps to ensure clouds and ‘hit’ are perfect every time.

One thing to note is that a suitable tank needs to be purchased separately.

Sometimes this may sound as an inconvenience, yet truth be told it’s actually often a positive.

When combined with a compatible Innokin Tank (there’s lots to choose between) this mod will deliver top quality vape every single time.

What’s In The Pack?

Don’t forget that this isn’t a starter kit – it’s a stand alone top quality battery kit.

That being said it does also come complete with all charging cables anyone would want.

These are pass through micro USB (vape while you charge) and also a eGo/510 thread adapter.

Also included are comprehensive, user friendly instructions that explain what kind of tanks/atomizers are compatible with the core unit.

Overall this is an excellent choice for the casual vaper who needs a very reliable mod.

The Innokin Cool Fire 4 40W absolutely excels at the quality of its design, and ease of use.

Anyone looking for a go-to handy unit that won’t break the bank should take a serious look at this excellent device.


Click REVEAL COUPON to view the discount code. Simply enter code at checkout.


Click REVEAL COUPON to view the discount code. Simply enter code at checkout.