What’s up vapers!
SirRisc here with another gear review!
This Coolfire Pebble was sourced from Innokin!
Premise.

Innokin is one of those brands that have established a certain level of quality in the market.
They’ve proven time and time again that thinking on their own is the best choice to be competitive.
The Coolfire series is proof of that, and it just got a new addition to the line up by the name of Pebble.
Let’s have a closer look at the Coolfire Pebble!
Specifications.
- 50W maximum power output
- 1300mAh built-in battery
- 1A USB Charging with pass-through capability
- Resistance range: 0.2ohm to 3.5ohm
- Measures only 34mm X 22mm X 55mm!
- Comes with a Slipstream clearomizer (not included in the Express kit)
Packaging.







Performance.
I’ve always had a thing for dense and flavorful clouds of vapor, which usually means going for slightly bigger mods that are capable of pushing a bit more power.
But lately I’ve come to appreciate a new trend that seems to be forming, tiny little mods that are easy to pocket and weigh next to nothing.
The Coolfire Pebble is one of those mods, and it’s so damn tiny that I’m actually scared of losing it.
Considering the size is only 34mm X 55mm, the Pebble isn’t exactly what you’d call underpowered.
It can output 6W to 50W, which should be plenty to power a small single coil tank.
Innokin has the Pebble for sale in two versions; the Express kit which only comes with the mod, and the Vape System kit which comes with a Slipstream clearomizer.
The Slipstream clearomizer is their newest one and it’s quite frankly everything I expected the Axiom to be.
It has top airflow similar to the iSub Apex, which keeps it from leaking and delivers dense flavor.
This does mean it has different coilheads from the usual iSub coilheads, these are made specifically for the Slipstream.
In terms of flavor the Slipstream does a very decent job, the flavor is mildly warm and prominent but it’s not spectacular.
As with most of the Innokin tanks, the airflow is open enough to allow for a slightly restricted DTL hit.
Due to the airflow being on top, it does have a bit of an issue with loudness just like the iSub series has.
Alright, let’s have a look at the Pebble itself now.
It’s an absolutely tiny mod that weighs next to nothing but it does have a 1300mAh batttery that can be charged via USB.
With 1A charging it charges quite quickly and it does support passthrough vaping, which means you can keep on using it while it’s charging.
The Pebble is as simple as it gets, it doesn’t have temperature control or TCoR. It’s meant to be a simple pocketcarry.
On the spine of the mod there’s a piece of dark transparent plastic which hides 3 LEDs to indicate the batterycharge in typical Innokin fashion.
Red means the battery needs to be charged, orange means the battery is about halfway, and green means you’re good to go.
The buttons also reside there, as well as the display. The buttons are in shiny silver and have fairly good tactile feedback, they’re clicky but not loud.
The display is small but very clear to read and shows the resistance and battery indicator on top, the wattage in larger letters beneath, and the voltage and pufftimer on the bottom.
To change the wattage you’ll have to hold the plus or minus button until the wattage start blinking, like with most Innokin mods.
Performancewise the Pebble isn’t an exceptional mod, but it works as intended.
What I mean by this is, it does 50W and it does it well.
The power output is accurate down to 10% of the battery, then it drops off slightly before telling you to charge by blinking the red LED.
Whether or not you use the Slipstream clearomizer on it is your own choice of course, I’ve mainly been using it in combination with the Serpent Mini which seems to work very well for me.
The resistance range is something to keep in mind if you’re using a rebuildable tank on it, it won’t fire anything below 0.15ohm despite the manual stating 0.2ohm.
My goto build on the Serpent Mini is a staggered fused clapton made up from 26AWG cores and 32AWG wraps, around a 3mm bit.
That gives me a resistance of 0.48ohm, a fair bit higher than what I’m used to but a proper dense and flavorful vape.
With that in mind the maximum amp load the battery will take is 15A, so building much lower isn’t exactly an option either way.
That’s also not the intent of this mod, it’s meant more like a platform for a more subtle vape.
Aesthetics.














Pros and Cons.
Pro.
- Small and easily pocketable
- No frills, just set power and vape
- Passthrough vaping
- Easy to read display
- Weighs next to nothing
- 1300mAh has surprisingly long batterylife
Con.
- 15A maximum load
- …
In conclusion.
The Coolfire Pebble is an excellent mod. It’s small and looks a little dinky at first, but it performs like a champ.
With a maximum power output of 50W it can power most single coil tanks, though only above 0.2ohm.
It’s an excellent platform for a more subtle vape where clouds aren’t the main attraction.
Considering it has a built-in battery and can be used as a passthrough makes it a great starterkit too, especially in combination with the Slipstream clearomizer.
I’ve been using the Slipstream mainly on the Kroma by Innokin, and paired the Pebble with my 24K Serpent Mini and it’s a great combo for the more advanced vaper.
Overall I’d replace this mod in a heartbeat if it broke, it’s just so simple and easy.
In closing I would like to thank Innokin for sending out the Coolfire Pebble!
Thanks for reading, join me next time as I take a look at a powerhouse from iJoy, the iJoy Maxo! 315W and quad 18650s, holy shit!
Need to reach me? Head over to my website.
Interested in what I vape daily? Check out my Instagram.
Want to know more about DIY? Head over to ELR.
#staycloudy !
SirRisc disappears in a cloud of diketone laden strawberry custard scented vapor
DISCLAIMER: This review is based on personal opinions and is not intended as a promotion, endorsement or advertisement.
The publisher is not sponsored, affiliated or compensated in any way.