Smok TF-T3 coil heads are the newest heads from Smoktech. These massive pre-built heads have three coils – each with their own vertical juice slit – and organic cotton wick. Each coil has 6mm juice holes for ultimate saturation. The TF-T3 heads, built at 0.2 ohms resistance, can vape from 40W-130W. This range is large, and these coils taste great at around 80 watts, or more. At 40 watts, just a bit of vapor is produced.