The new SMOK GX2/4 220W/350W TC Box Mod is the newest box mod that can hold maximum ouput 350w after SMOK GX350. The GX2/4 meets all your demands with the smallest size among all 220W mods in the global. Works with either dual 18650 batteris or quad 18650 batteries, the max output can 350watts, support resistance as low as 0.06ohm under temp control mode,VW and TC output modes switchable. When pairing with TFV8 Big Baby tank, you could have double experiences immediately. Available in 7 colors.