The Innokin Cool Fire 4 40W Box Mod is the latest from Innokin to join the Cool Fire Series. This tiny variable voltage / wattage mod delivers a powerful adjustment output range of 3-7 volts or 6-40 watts. With a respectable 14.5Amp limit The Cool Fire 4 will fire its full output range as low as 0.2Ω. Unlike the other Cool Fire devices this one makes use of an internal 2000mAh battery and offers a USB port for charging and pass-through functionality. A stainless steel threaded spring loaded 510 connector ensures a durable and reliable connection with any atomizer. It even has a master off/on switch on its bottom. Beautifully finished mod is crafted from aluminum and zinc, this mod is both lightweight and durable but best yet
comfortable to use. Don’t let size fool you, The Innokin Cool Fire 4 is a little mod that packs a big punch