Leaf IPV has a novel design with big OLED screen and easy operating buttons. IPV mini 2 is adjustable from 5W to 70W. And IPV 4 has maximum 100W. They both support sub ohm vaping. Get it to enjoy big vapor! IPV mods also have overheat protection, low voltage protection, low resistance protection, output short circuit protection etc. which ensure good performance and safety while using.