Innokin Prism T18E Pro Clearomizer Tank, 4 Colour Options

The T18E and T18 II tanks in the Prism range use 1.5 Ohm coils as their primary option. The T18E Pro steps up to 1.7 Ohm as the pre-fitted coil. At 1.7 Ohm, the coil draws more resistance during firing than the 1.5 Ohm, which in practice produces a tighter, more restricted pull at the mouthpiece. The airflow feels closer to a cigarette draw than the 1.5 Ohm option, making the T18E Pro the choice within the Prism 18mm range for vapers who find the 1.5 Ohm draw still slightly too loose.

The 1.7 Ohm coil runs at lower wattage than the 1.5 Ohm. This produces less vapour per draw, which at higher nicotine concentrations is actually the intended behaviour -- the tighter draw and lower vapour volume work together with 20 mg nicotine salt to deliver a satisfying hit that mimics a cigarette without overwhelming nicotine delivery. For smokers making their first transition away from cigarettes, the 1.7 Ohm coil is frequently the most comfortable starting resistance.

When the 1.7 Ohm coil ages, you have the 1.5 Ohm spare already in the kit to compare. Many vapers find after a few weeks of vaping that they are comfortable stepping down to the slightly looser 1.5 Ohm draw, which is a natural progression as you adapt to vaping. The T18E Pro kit accommodates this transition without requiring an additional purchase.

The Prism 18mm range at VapeCity includes the T18E at £42, the T18 II at £45.60, and the T18E Pro at £51.52. All three use an 18mm body and 510 connection, making them compatible with the same class of slim pen-style devices. The differences are in the coil specification, accessory content, and colour range.

The T18E is the entry point with 14 colour options but a minimal kit (tank, coil, O-ring set only). The T18 II adds a magnetic mouthpiece cap and spare drip tip for £45.60 but drops to three colour options. The T18E Pro is the most complete kit with two coils (1.7 Ohm and 1.5 Ohm), spare drip tip, and O-ring set at £51.52. Its colour range is four options including the Gunmetal finish not found elsewhere in the range.

The T18E Pro makes most sense for vapers who want to experiment with coil resistance, who prefer the very tight 1.7 Ohm draw, or who want the Gunmetal finish. For vapers who primarily care about colour choice, the T18E's 14 options at a lower price point is the better value. For those who want the magnetic cap feature, the T18 II is the specific option for that.

The tank arrives with the 1.7 Ohm coil already fitted, so the only real discipline is priming before the first vape. Skip that and the cotton scorches on the opening draw, which is the most common reason a brand-new tank tastes burnt. The same applies the day you swap in the spare 1.5 Ohm coil.