... WildFire variable voltage battery mod voltage 3.7V or 6V,LCD displays power level Specificationsmechanical switch on/ off without circuit, voltage ... 3.7V or 6V,LCD displays power level,voltage,resistance 3.0V to 6.0V by ... output voltage which raises and drops accurate and steady.6. LCD displays the present power level, output voltage, and connected atomizer resistance ...