My first comment, when I received the CoolFire IV from Innokin to review just a little over one month ago now, was, best design I’ve seen from you guys since the introduction of the VTR. And six weeks on, after using it on a daily basis I’m sticking by those first impressions.
Yes, it has all the functionality and reliable performance we have come to expect from Innokin, but this time with a touch of real class in its appearance, size, and choice of colours.
Firing a large range of tank resistances from 0.2Ω all the way up to 3.1Ω and from 6W up to a maximum 40W in a compact size of only 3.93”. The CoolFire IV is a very impressive little performer that you’re going to find very hard to put down I can assure you!
Remove the outer shrink wrapping along with the decorative cardboard sleeve and you will find the resistant plastic casing with the CoolFire IV inside.
Detach the two stickers that hold the upper lid closed, to access your CoolFire IV device along with an ego 510 threaded adapter, USB charging cable. You will also find inside located underneath the foam housing a manual and Innokin stickers.
The rear contains an overview of the products features, so be sure to read this entirely including the age and health warning before purchasing it.
The Cool Fire IV battery capacity is displayed via green, yellow and red LED lights.
Green = Almost Fully Charged. When the CoolFire IV is fully recharged, the LED light will power off.
Yellow = Half Power.
Red = Low Power. Charge the Cool Fire IV
Voltage can be adjusted from 3.0 – 7.5 volts in .1-volt increments.
The wattage can be adjusted from 6.0W – 40.0 Watts in increments of .5 watts
ON/OFF Battery Switch
Saftey15 second cut off
Includes a Bright OLED flip screen with reverse orientation
Low Voltage Warning
Short Circuit/Atomizer Protection
Vape while charging Technology
It also remembers your last Voltage or Wattage settings
Operating Voltage: 3.0V-7.5 V
Operating Wattage: 6.0W-40W
Battery: Internal 2000mAh
Standby current: 100uA max
Maximum Output Wattage: 40W
Maximum Output Current: 12A
Maximum Output Voltage: 7.5 V
Clearomizer Resistance: 0.3 Ohm (Recommend)
Charging: Micro USB DC5V/1A
Function & Performance
I have used the ranges supplied in this chart to test the CoolFire IV’s full range, from 6 watts all the way up to its maximum of 40 watts. I have also used the iSub G, along with the Smok VTC Pro, and three different E-juices with varying PG/VG mixtures from Space Jam, Cuttwood, and Mystique to gauge its overall performance for you.
If you intend to use this range of E-Liquids, please make sure they meet the current requirements set out by your countries regulatory bodies.
For EU countries, more information on this can be found here along with REACH’s partner agencies from around the globe.
E-Liquids may contain diacetyl (DA) and acetyl propionyl (AP) or other carcinogenic ingredients or disease-causing substances, so please be aware of this and seek medical advice before using any of the products used in my reviews.
People can suffer from allergies to chemicals that may be present in the makeup of certain types of E-liquids or produced in their vapour. People can become sensitive to, or even allergic to Nickel or Titanium used in Temperature Controlled designed coils. Again, please be aware of this and seek medical advice before using any of the products used in my reviews. Also, check with your E-liquid supplier or the equipment manufacturers directly before purchase and use.
You might find this range of calculators provided by Steam Engine particularly useful, so thank you to Lars for allowing me to include them in my reviews. These calculators are currently under development, and the information that they contain may change at any time without notice. Please read the How It Works section for a more in-depth understanding. And never leave your device charging unattended, make sure you are using the recommended battery for your device, and always remember, SAFETY FIRST.
Potential Polycarbonate problems
It is well known that certain e-liquid ingredients can cause cracking or even melting of polycarbonate plastic or acrylic tanks and tubes. For further information on this subject, please check with your E-juice supplier or contact the manufacturer directly.
The CoolFire IV is a very well designed compact device packed with the latest technology that looks good and sits comfortably in the palm of your hand.
It’s 510 connector has a spring loaded positive pin made with durable stainless steel threading allowing for flush mounting of a wide variety of different tanks with an ego thread adapter also included.
The CoolFire IV uses OLED clear bright technology found on recent models from the Innokin range making it easy to see and adjust your settings to an orientation that suits you best. The display shows the resistance of the attached coil, current voltage, (adjustable in increments of 0.1) along with the wattage, (adjustable in increments of 0.5) using the three well placed and very comfortable buttons. You also have a visual display of the device’s current battery charge which appears to be reasonably accurate.
What I love about Innokin’s products is the degree of accuracy and safety measures that are included in their designs. This is what they say.
The Cool Fire IV uses Vrms DC current being very accurate with a power deviation of only 0.1Watt. The full 40 Watts is precisely maintained between resistances of 0.3 to 2.5 Ohms. Therefore, you have no wasted power, and exact accuracy means you are always vaping at the power level you choose. Vrms provides superior precision in delivering the correct wattage Ohm’s Law requires and stable power means better vapour.
I’m going to keep this part of the review short and sweet just like the quick overview of the CoolFire IV due to time constraints.
It appears that Innokin have finally struck gold with this latest edition, and I would be amazed if this does not become the biggest selling product in their range for 2015.
There is very little not to like about it if anything at all. The performance was excellent as is the wealth of technology and safety features included in its design, in a size and choice of well-suited colours that is sure to please.
Comfort is assured due to the smooth satin finish and rounded edges in a weight that is comfortable to hold, and it’s also very pleasing to the eye. The performance with both the iSub G and Smok VTC Pro at the ranges tested provided great vapour and flavour as well.
The only consideration I would have is a version with a removable battery option that some people may prefer?
Expected price range appears to be around the £40.00 or $48.00 mark.
For further details on the CoolFire IV or any other Innokin product, please visit the Innokin website or contact your local brick and mortar store.
To View The User Manual: Click Here
Thanks to Innokin for providing the Technical specifications for this review and Images of the CoolFire IV
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