The Wotofo Serpent 50W TC Starter Kit is a compact, highly capable platform that includes the ergonomic Serpent 50W Box Mod and the flavor-orientated performance of the Serpent Sub 25mm Tank. Wotofo Serpent 50W is a convenient box MOD with built-in 2000mAh battery. It supports max 50W power and can fire no less than 0.1ohm coils. With ergonomic design, it is comfortable for you to carry or hold with. You can either use VW mode or Temp control mode.