Innokin Kroma A Zenith Vape Kit

72mm tall. That is the mod on its own, without the tank. For a device running up to 75W with full temperature control and an AETHON chipset, that is absurdly compact. The Innokin Kroma A ships with the Zenith MTL tank, which was designed in collaboration with Phil Busardo and Dimitris Agrafiotis. 

If those names mean something to you, you already know why the Zenith has the reputation it does. If they do not, the short version: two of the most respected vape reviewers in the world helped design this tank, and the flavour it produces at MTL wattages earned it a following that has not faded. 2000mAh built-in battery, 2ml TPD top-fill, Zenith Coils, UL8139 safety certified. Four colours. Over 18s only.

Why vapers choose this:

• UL8139 certified. First vape mod in the world to get this independent safety standard. Not just a sticker.

• Zenith MTL tank co-designed with Phil Busardo and Dimitris Agrafiotis. The tank that changed MTL flavour.

• 2000mAh built-in battery with 2A charging. Lasts a full day of MTL use.

• 6 to 75W with full TC (Ni, Ti, SS316L) through the AETHON chipset

• 72mm tall with 510 thread, 2ml TPD tank, and bottom airflow. Genuinely pocketable.

Innokin Kroma A Zenith Vape Kit Features

The Zenith Tank Has a Reputation, and It Earned It

Phil Busardo and Dimitris Agrafiotis worked with Innokin to design this tank. Both are long-standing, independent vape reviewers with massive followings, and the Zenith was their attempt at building the best MTL Tank they could. It worked. The twist top-fill shuts off liquid flow automatically during filling, which prevents flooding. The bottom airflow ring lets you dial the draw from a tight cigarette pull to something slightly more open. And the Zenith Coil Range has been available in UK shops for years now. Finding replacements is never a problem.

UL8139 Is Not Marketing. It Is an Actual Safety Certification.

Here is the thing most people do not realise: the vast majority of vape mods have zero third-party safety certification. None. The Kroma A was the first to go through UL8139, which is a standard developed specifically for vaping devices. It covers battery protection, overcharge handling, short-circuit response, and thermal management. Innokin submitted the Kroma A for independent testing, and it passed. That is not a badge they printed themselves. It came from an external testing body.

72mm Tall and You Will Forget It Is a 75W Mod

Put it next to a pod kit. The size difference is not as dramatic as you would think. 72 x 47 x 24mm for the mod alone. Trouser pocket, jacket pocket, small bag. Sits flat, does not stick out, does not announce itself. The trade-off is a built-in battery instead of a removable 18650, but 2000mAh at MTL wattages lasts a full day comfortably. Most people will charge it overnight and not think about it again until the next evening.

The AETHON Chip Does More Than You Will Probably Use

Variable wattage from 6W to 75W. Variable voltage up to 7.5V. Temperature control for Ni, Ti, and SS316L from 150°C to 315°C. Mini OLED screen showing wattage, resistance, battery, puff count. Realistically, most MTL vapers set it to 12W and leave it there. But the TC and VV modes exist for the people who want to fine-tune, and the AETHON handles them properly.

The Steel Sleeve Around the Glass Is Not Decorative

The Zenith tank wraps its Pyrex glass tube in a steel cage. Keys in your pocket, drops onto hard floors, bumps against a table edge. The steel takes the impact instead of the glass. It sounds like a minor detail until you have cracked a glass tank at the wrong moment and had to deal with liquid everywhere and no way to vape until a replacement arrives. The 24mm diameter matches the mod body flush. Looks like one piece.

Innokin Kroma A Zenith Vape Kit Colours

Four stocked. Same internals across the board.

#buttons

• Black
• Red
• Purple
• Blue

How to Set Up the Innokin Kroma A Zenith Vape Kit

1. Charge it. Plug the micro USB cable into the front of the mod. The OLED screen shows you the percentage. Wait for full before first use. Not negotiable.

2. Prime the coil before you fill. The 1.6 ohm coil comes already installed in the Zenith tank. Before any liquid goes into the tank, tilt it and drop two or three blobs of e-liquid through each of the tiny side holes on the coil. 

3. Fill using the twist cap. Half-turn the top cap of the Zenith tank to expose the fill port. The twist design cuts off liquid flow while the cap is open, which stops flooding. Pour in your nic salt or 50/50 Freebase. Twist the cap shut. Then stand the kit upright and leave it for eight minutes. 

4. Five clicks, set your wattage, vape. Power on with five quick clicks of the fire button. Adjustment buttons set the wattage. 10 to 14W for the 1.6 ohm. 15 to 18W for the 0.8 ohm. Start low, take a few draws, nudge it up until the flavour hits.

What's in the Innokin Kroma A Zenith Vape Kit Box

• One Kroma A mod with AETHON chip and 2000mAh battery. 

• One Zenith MTL tank with Pyrex glass in steel sleeve. 

• One 1.6 ohm Kanthal coil already installed. 

• One 0.8 ohm Kanthal coil as spare. 

• One Micro USB cable. 

• User manual and warranty. 

No e-liquid. Grab a compatible nic salt or 50/50 liquid before your kit arrives so you are ready to go on day one.

Runs Zenith Coils, Z Plex3D, and Any 510 Tank You Own

The Zenith tank takes the full Zenith coil range: 1.6 ohm Kanthal (tight MTL), 0.8 ohm Kanthal (warmer, slightly open), 0.5 ohm (restricted DTL), and the Z Plex3D mesh coils that improve flavour through mesh wicking. Same coils fit the Zlide, Zenith II, and Zenith Pro. All cross-compatible.

The mod itself has a 510 thread. Unscrew the Zenith and put on whatever MTL Tank you already have. Or a sub-ohm tank if you want to push the 75W. Supports 0.2 ohm to 3.5 ohm.

E-liquid: 50/50 VG/PG. Nic salts at 10mg or 20mg for the 1.6 ohm coil. 10mg salt or 6mg freebase for the 0.8 ohm. Do not run 70/30 High-VG Liquids in the Zenith. The coil ports are small, and thick liquid will not feed through properly.

About Innokin

Innokin built vape hardware in Shenzhen before half the brands on this website existed. They were the first manufacturer to submit a mod for UL8139 safety certification, and the Kroma A Zenith was the device they chose to do it with.

The Zenith tank came from a collaboration with Phil Busardo and Dimitris Agrafiotis, and the fact that people are still buying it years later says more than any marketing copy. Innokin builds reliable gear. The Kroma A sits in the middle of their current kit lineup: serious features, reasonable price.

Stock Up and Save

Coils and e-liquid are the recurring costs here. A pack of Zenith replacement coils plus a few bottles of nic salt alongside the kit covers your first month without needing a second order. Every item ships individually wrapped and padded for transit protection. Age-verified checkout, same-day dispatch before 4 pm, full tracking. Over 18s only. Orders over £25 ship free with Free Pirate Post.

Conclusion

The Kroma A Zenith still sells because it still deserves to. UL8139 certification. A tank designed by Busardo and Agrafiotis that produces MTL flavour most pod kits cannot touch. A 2000mAh battery in a 72mm body. 75W with full temperature control through the AETHON chip. And a 510 thread that lets you swap the Zenith for anything else you fancy. It is years old now and still competing with kits that launched last month.

That tells you everything. If you want a compact, safe, properly engineered MTL mod with a tank that has earned its reputation the hard way, the Kroma A Zenith is the one. Grab it at Pirate Vapes.

FAQs

Does the Innokin Kroma A Zenith Vape Kit have a removable battery?

No. 2000mAh Li-Po, built-in. Charges via Micro USB at 2A. Not removable, not replaceable.

What coils does the Innokin Kroma A Zenith Vape Kit use?

Zenith series coils by Innokin. 1.6 ohm and 0.8 ohm Kanthal included. The full range fits, including Z Plex3D mesh.

Can the Innokin Kroma A Zenith Vape Kit run other tanks?

510 thread. Yes. Anything 510-threaded works physically. The mod handles 0.2 ohm to 3.5 ohm at up to 75W.

What e-liquid should I use with the Innokin Kroma A Zenith Vape Kit?

50/50 VG/PG. Nic salts at 10mg or 20mg for the 1.6 ohm coil. 10mg salt or 6mg freebase for the 0.8 ohm. Keep 70/30 liquids away from the Zenith tank. The coil ports cannot handle them.

What is UL8139 on the Innokin Kroma A Zenith?

An independent safety standard for vaping devices. Covers battery protection, overcharge prevention, short circuits, and thermal management. The Kroma A was the first vape mod in the world to pass it. External testing, not self-certified.