With a wattage range from 5-50W that can be adjusted by spinning the dial located at the bottom of the Aspire CF Maxx, this device wil fire sub ohm with no issues. With a resistance range between 0.3-5.0Ω. The CF Maxx features an internal battery cell with a capacity of 3000mAh, you'll be able to keep on vaping throughout the duration of your day. Coated in carbon fiber accented with with stainless steel on the top and bottom of the battery, the CF Maxx has a modern design but still holds strong functionality.