Yep. Prism tanks.
The T18 and T22 Prism tanks work fine on the batteries they came paired with but the batteries are not adjustable. The Innokin batteries are said to put out a constant 14 watts for the duration of their usable charge.
However, the Prism tanks like any tank regardless, work best on a regulated mod where precise personal preference can be dialed in.
I really like the T18 and T22 kit configurations. I get good dense warm vapor in a volume a former smoker is used to. They are pretty good MTL devices and I often recommend them for those smokers who would like to give vaping a try. Heck, I still use them every day (in one configuration or another).
That said, in the picture you may notice an Aspire Nautilus Mini sitting on an Innokin Endura (T18) battery. It just seems to work best that way ... even better than a Prism tank sitting on that battery. The Mini has a 1.8 ohm head and the T18 is 1.5 ohm. Maybe a better coil/battery match? Whatever, I dunno ... but it's (one of) my grab and go.