... new product large vapor lava tube electronic fag for UK Specification: ModelVariable Voltage lava tube 3.0Battery CapacityAW 18650 ... resistance. * By clicking the ''+'', "-" button,you could adjust the working voltage,meanwhile the display will show you the exect voltage ... North America such as USA,Canada; European countries such as UK, Germany, France, Greece, Russia, Sweden, Swiss, Austria, Czekh, ...