A strong contender in the flavor category, the Firelord Subohm RTA Tank by Freemax is a little wonder. The compact, 2ml tank is 23mm in diameter, with a top fill design. It comes with a 510 drip tip, which is insulated to provide a nice, cool vape. The adjustable airflow on the bottom works with the double coil to put off nice flavor and decent cloud production. This unit is not built for massive clouds, but the flavor is superb. It runs at 20 – 60W on a 0.25 kanthal coil.