Sigelei KAOS Spectrum Review — A Mod For The Coolest


by James Bickford

Updated: January 5, 2022

Sigelei KAOS desktop

Review Score: 65/100

Price Range:
Black, Holi, Red, Coffee, Space Grey, Chromatic
Battery :
Dual 18650
88 mm X 45 mm X 30 mm
Works with:
  • Eliquids icon


  • Color Screen
  • LED Light Bar


  • Lacking on the Adjustment Options

When I heard about the Sigelei Kaos Spectrum, I thought it was just another mod with the same look as the Smok Alien 220W, but actually, it is not. It is not even in the same category. That is just the thing that almost got me with this product, and I hate it when other companies take and use older devices only with a rename, just grinds my gear. Again, this is not the case with the Sigelei Kaos Spectrum.

Sigelei KAOS desktop

What’s Included in KAOS SPECTRUM Box

  • Sigelei Kaos Spectrum MOD
  • USB Cable
  • User Manual
  • Warranty Card
  • 6X LED O-Rings
  • 2 Coils
  • Pack of Japanese Organic Cotton

Unboxing the Sigelei KAOS Spectrum

The box is not big giving off a hint that the device itself may be quite small. The design of the box itself is not anything special; it is a bit flashy with the product and logo displayed. On the back of the box, it tells you a bit about this Sigelei mod and what is included, again nothing too fancy. Would have been nice to see some more effort put into the boxing to give it a better feel.

Opening the box gives you access to its contents finally, a warranty card, user manual, security code and quality control certificate. Under that is the Micro USB Cable and mod.

First Look

The device itself is pretty bare bones, as mentioned before it almost looks like the Smok Alien 220W. The finish of the KAOS is a sleek matte black with a silver accent around the screens and buttons, which I thought looked okay if you are more into a neutral look. The back of the mod has a textured finish to it which gives the whole thing a little character — pretty sure it is leather, not real leather, but don’t hold me to that.

The Design and Looks

Overall, I think the design is simple and functional for a dual 18650 mod. The buttons are easy to access on the front and are nice and clicky. The 0.96 inch TFT color display was a bit of a surprise as I was not expecting a color display on this device. The front also had a changeable LED light bar around the buttons and screen. The fire button on the side of the Sigelei KAOS Spectrum is also nice and big and satisfying to hit. I need to note there is a little-curved lip above the fire button which I found was super comfy to just rest my thumb on when needed.

As I mentioned above the back has a pleather sticker which gives a decent textured feel while holding the KAOS. On the bottom, there is a latch hinge design that provides access to the battery compartment. Sigelei KAOS Spectrum does carry two 18650 batteries, which sadly are not included.

Size, does it matter?

I have to say the size of this mod is spot on for me at 88mm x 45mm x 30mm; I can pretty much cover it with most of my hand so stealth vaping shouldn’t be a problem for anyone needing to be stealthy. Also, shoving it in a jacket pocket, or purse is convenient, it does not weigh too much so keeping it there isn’t too bothersome

Digging Deep

This mod is like most it has a handful of features that are similar to most other mods; however when it came to the display it kind of stands out. It sports a color display which is pretty rare to see in this type of mod. That is just one of the features this device has.

What Makes the box mod Work?

There are only three buttons on the mod which, to be honest, is pretty much the norm. Interestingly, to turn the device on you just need to put the batteries in the Sigelei KAOS Spectrum, doing so almost instantly turns the screen on. Thought, five clicks does turn it on and off. First thing I noticed right away was the blue WATT icon it just caught my eye because I am not used to color displays. Apparently, above that is the current wattage level, to the right of that is all the info you need, voltage levels, coil resistance, amperage and battery level indicator with an actual percentage left number.

To quickly adjust the wattage the front two buttons can be manipulated to do that by just taping up or down. I should note that when changing the wattage levels below 60W the color stays green, over 60W it turns yellow and over 120W it turns red.

Getting into the menu is a standard three clicks of the fire button, which gives you two immediate options, Power TCR and Color mode.

Power TCR

This option lets you adjust a few settings related to coils and power.

  • Power — This option is wattage mode which lets you control the device by its wattage level.
  • SS — In this mode, it selects the Stainless steel settings giving you the best results if you do choose an SS coil.
  • Ti1 — This option is like the one above but for Titanium.
  • Ni200 — Obviously this is the same as the two above, but for Nickel coils.
  • TCR — This mode is Temperature Control mode which lets you select the temperature level best suited for you.

Color Mode

In this option, you can select the type of color you want for your LED light bar. You can choose from Blue, Yellow, Red, Cyan, Purple, and Green. Pressing the fire button selects the desired color ( I picked blue) and gives you a few more options. The last few options for the LED are when you want the LED light too. Yep, you guessed it “light up.” Those options are: When using, Always on, and Light off.

Other Controls

Also, pressing the fire button and the plus button it does lock the device, so you cannot accidentally hit any of the buttons changing your settings. Another cool feature is when you are in TCR mode, and you hit the up and down button at the same time, it locks the resistance.

Overall, using the options on the KAOS is darn easy as there are only a handful to deal with, so if you are someone looking for an in-depth product, you might want to look elsewhere.

How to Keep the KAOS Clean

Keeping the KAOS clean is easy, first remove the batteries and whichever tank you are using. On our mod we had the Sigelei Meteor RDTA, some juice may get under your tank so removing it for cleaning is a good idea.

I just grabbed some alcohol wipes or a cloth with some Isopropyl alcohol and gave everything a good wipe down — which seemed to do the trick. Let it all dry, reassemble, and you are good to go. All in all, the cleanup was pretty easy as nothing out of the ordinary needed to be done.

Meteor RDTA Review: Choosing the Right Partner

As the KAOS Spectrum does not come with a tank of its own, I decided to choose another Sigelei product. The Meteor RDTA (which I think is the tank they should’ve included with the Spectrum) is one I had kicking around, so I thought I would give it a go with the mod. I will give a quick review on what I thought about the two bundled together.

The tanks construction is pretty well made out of Stainless Steel and sizes in at 24mm by 43.1mm a decent size by any means. It includes an LED light in it as well, hence why I think it should’ve been included with the KAOS.

The Drip Tip is removable, and the tank capacity is 4ml, which should last most vapers or just me the day. To prime it and fill the tank you need to disassemble most of the tank which is a downer. However, it is not all bad as about half the tank comes apart and there is a small hole which you can use to refill.

Sigelei KAOS Spectrum and Meteor RDTA Performance

Once I had everything set up with the KAOS and the Meteor, it was smooth sailing my initial thought was almost like this thing was to much work. I have to say after getting into it the combo really works, and the flavor was surprisingly good.

I like to vape around the 50-70W range, and I found this setup very nice, I did not experience any dry hits with around half airflow. Bumping it up to around 80-100W as you can guess the vape was a bit warmer with a slight loss in flavor, but an increase in cloud production. Finally, taking it up too 120W just where the wattage level turns red was almost unplayable for me. It was too dry and too hot even with the airflow open all the way. Unless you have iron lungs, I do not think many people will be vaping at much higher settings.

Again at the lower wattage levels, this thing is a dream.

Sigelei KAOS Spectrum Specifications

Sigelei KAOS Spectrum
Dimensions: 88 mm X 45 mm X 30 mm
Operating Wattage: 10.0 – 230.0W
Voltage Input: 6.4 – 8.4V
Voltage Output: 1.0 – 7.5V
Temperature Range: 100 – 300C / 200 – 570F
Wattage Output Range: 10W to 230W
Resistance Range: 0.1- 3.0 ohm
Modes: POWER / TC-SS / TC-Ti / TC-Ni200 / TCR / TFR

Pros & Cons

The Positives

  • Color Screen
  • LED Light Bar
  • Sturdy Construction
  • Compact Design
  • Decent Battery Capacity

The Negatives

  • Lacking on the Adjustment Options
  • No Included Batteries
  • Putting the Batteries in Automatically Turns it On
  • No Included Tank


Just some parting words about the Sigelei KAOS Spectrum and the Meteor; I really enjoyed the simplicity of the mod even though I did not come with a tank. I luckily had the (should be) partner tank to go with it, so I feel that I got the whole experience that Sigelei was going for with this mod. I have to say together they bundle really does rock, I got great flavors and longevity with the 4ml tank and dual 18650 batteries.

However, a few negatives I think they should work on is that they should definitely make a kit version which included the tank. If they can iron out some of the bad points I mentioned, I think they will have a great device.

Published: November 20, 2017Updated: January 5, 2022

James Bickford

My way of understanding the significance of vaping came not only through the disruption of smoking but its effects on society as a whole. Now I bring people to vaping and bring vaping to people. I love using new gear, writing in-depth reviews and generally nerding out about vaping to like-minded people.


Leave a comment

2 comments on “Sigelei KAOS Spectrum Review — A Mod For The Coolest

  • Deidra

    July 17, 2021 at 3:55 pm

    I got this as a gift but when I use it the oils burn my lips. Why is this happening

  • Mary

    October 4, 2018 at 12:10 am

    Why it heat up so so hot on my 2nd puff
    And its not giving me right smoke like its dead and its on 330w