Sigelei MT 220W TC Box Mod Review

If this week was a novel, we’d title it “A Tale of Two Sigeleis.” Because right on the heels of a disappointing experience with the gauche Sigelei Kaos Z, I had a fantastic time testing the Sigelei MT. Now, don’t get me wrong, the MT isn’t perfect, but this time, Sigelei matched its brash design choices with powerful, reliable performance. This powerful mod is available now at Element Vape.

The Sigelei MT is a celebration of futuristic, industrial-esque design. My black and chrome test model looked like a combination of steel vent pipes and a sci-fi weapon stock, yet somehow managed to meld these disparate elements into a device that feels both comfortable and solid in the hand.

Yes, there’s clearly something in the water over at Sigelei. This design isn’t quite as over-the-top as the Kaos Z, but this metal pipe array is still adorned with a translucent front plate, exposing the circuitry, LED lights surrounding the front bezel, and an oddball fire button that wouldn’t look out of place on an Alienware computer.

But, despite my personal preference for more mature, subdued mod designs, the frame is oddly striking in its pieced-together symmetry. The centered 510 connection and 33.5mm wide matte alloy frame manage to unify the contrasting parts, properly framing the full-color TFT screen.

On that note, I actually wish the Sigelei MT had a monochrome display, as this screen, while clear and bright, almost clashes with the other design elements – an effect only made worse by the LED lights framing the bezel. (Yes, you can turn them off. Yes, you probably will.)

Even without batteries installed, the Sigelei MT has significant heft, and feels as if it could survive a truck accidentally backing over it… three times.

However, the Sigelei MT has a ridiculously loose bottom battery door, which caused my cells to rocket onto my desk unexpectedly on no fewer than five different occasions, with absolutely nothing prompting the release, other than placing it upright on a flat surface.

Though I shouldn’t really be comparing the Sigelei MT with the Kaos Z, the disparity between the chipsets is beyond noticeable. Whereas the Kaos Z suffered from perpetual misfires, the MT was consistent across the board, all the way up to its advertised 220 watts.

The concise menu system directs users to its array of wattage, temp control, TCR and bypass modes, and effortlessly allows for preheat adjustment to control preheat settings.

On a more mechanical level, the buttons and fire key are rock solid, with no rattle or unwanted play. The fire button, is a particular highlight, with snappy responsiveness, and a fantastic feel that balances easy engagement with sturdiness. Even the USB upgrade/charge connection is snug and secure – hardly a given with so many mass-produced mods on the market today.

The massive 33.5mm thick top plate allows the Sigelei MT to seat massive tanks and RDAs without overhang or awkward balancing. The MT is relatively narrow, despite this girth, so an oversized atomizer could throw off the balance, but the design more than accommodates for these devices. Even with a 30mm tank sitting atop the MT, nothing looked out of place, nor did it feel strange to operate.

On that note, the centered 510 connection is press fit, but extremely tough and durable, housing all of my test tanks without a millimeter of gap or wobble.

As mentioned earlier, there is no false advertising with the MT mod. The box says 220 watts, and that’s precisely what the device delivers. Using my Anarchist Riot RDA with a pair of fused claptons reading 0.14 ohms, I started vaping at 85 watts, and worked my way up the ladder in 10-watt increments, all the way to the device’s maximum.

While I was happy to see the MT hit that high-water mark, the metal pipe battery tubes became uncomfortably hot above 140 watts – a mild concern for a device rated to go 80 watts higher than that. To be sure this wasn’t related to the cells I installed, I let the mod cool, then swapped in three other pairs, all with the same results.

Oddly, the MT’s centered display and exposed chipset did NOT become warm at all, meaning the metal tubes could have actually been serving as heatsinks for the board, directing heat away from the circuitry. I just hope that residual heat was being drawn away from the batteries, as well.

One thing that didn’t happen at elevated wattages was any stuttering or misfires. The Sigelei MT was an absolute pleasure to vape, with smooth, steady power that never pulsed, even at 220 watts. And the MT also ramps up extremely quickly, which will give power vapers a reassuring kick as soon as the fire button is engaged.

At more moderate wattages, the Sigelei MT gave me a potent, flavorful vape and shockingly strong battery life. In fact, using a pair of fresh 3,100 mAh cells, my first day with the MT lasted nearly 10 hours before I started getting low battery warnings. Subsequent uses only continued the trend.

For such a bluntly powerful looking mod, the Sigelei MT is surprisingly precise when it comes to temperature control. Using a pair of SS316 coils on my trusty iJOY Captain RDTA, I was shocked how easily I managed to get the temperature settings to the right levels, and enjoyed a flavorful vape, free of dry hits.

Because the MT has a lower-level resistance of 0.05 ohms, I decided to switch to titanium and see how accurate the readings would be before warnings began to appear. My titanium test coils read at 0.06 ohms (so close!) and were recognized as such by the mod. Once wicked and wet, I anticipated the resistance reading would drop, but surprisingly, it stayed true.

After 20-25 deep draws, the Sigelei MT never wavered, and true to form, the TC was accurate and burn-free. Only after extensive vaping and some wattage adjustments did the MT finally throw me a low-resistance warning, and this was rectified after dialing back the wattage just a touch.

I may not be a temp control enthusiast, but I appreciate how well these modes were implemented on the MT. Looks can be deceiving, because the device was amazingly delicate with such minute adjustments.

THE SIGELEI MT 220W TC BOX MOD IS AWARDED THE SCORE OF “A”

Though my experience with the Sigelei MT was overwhelmingly positive and enjoyable, I would be remiss if I didn’t mention the battery door problem one more time. Even the gentlest placement on a hard surface managed to trigger the door hatch multiple times. I recommend a little quality control in this department.

On another note, one concern I had in my preview of the Sigelei MT was how it would feel in the hand over long durations. I’m happy to report it feels great. Though the MT is certainly weighty, the hollowed out industrial design manages to mold to the user’s hand in a surprisingly ergonomic way. It’s solid and stark, but altogether comfortable.

At the end of the day, the Sigelei MT mod is a quirky looker, with some minor heat and design glitches but a tremendous performer. My personal design preferences might not make this my daily driver, but there is no doubting the sheer quality of the performance and power provided in Sigelei’s latest achievement.

Sigelei MT Features:

• Sigelei Chip Set
  • 10 to 220W
  • 1.0 to 7.5V
  • 0.05 to 3.0 ohm Atomizer Resistance Range
• Temperature Control
  • Ni200 Nickel Support
  • Titanium Support
  • Stainless Steel Support
    • 316
    • 317
  • POWER mode
• TCR Functionality
  • Temperature Coefficient of Resistivity
• Resistance Read and Lock
• 200 to 570 Degrees Fahrenheit
• Three Button Control Face
  • Oversized Centrally Positioned Hexagon Firing Button
• Multi Format Colored 1 Inch TFT Display
  • Switch Between Various Display Arrangements
    • Class Leading Options and Support
    • Quickly Switch Between Alternative Views and Arrangements
  • Output Wattage
  • Output Voltage
  • Output Temperature
  • Battery Life Indicator
  • Battery Voltage
  • Atomizer Resistance
  • Time
  • Puff Counter
  • Colored Background
• Multi Colored LED
  • Fully Customizable
  • Blue
  • Green
  • Yellow
  • Red
  • Purple
  • Teal
    • Full RGB configuration
• Micro USB charging port and Firmware update
  • 2.5A Charging
• Slide and Lock Button Battery Access Door
  • Accepts Two High Amperage 18650 Batteries
  • Not Included (We recommend Nitecore 35A 3100mAh)
• Zinc Alloy and Stainless Steel Construction
• 20mm Stainless Steel 510
  • Spring Loaded Gold Plated 510 Connection

Sigelei MT Official Dimensions:

• 87mm by 50mm by 33.5mm

Sigelei MT Box Mod Package Includes:

• One MT Box Mod
• One Micro USB Cable
• User Manual and Warranty Card