Main Features & Detail On eVic VTC Mini: Authentic Joyetech eVic - VTC mini 75W TC box mod Material: Stainless steel ( minor parts may be made in non-SS ) Output mode: VT - Ti / VT - Ni / VW / Bypass mode Resistance range for VT mode: 0.05 - 1.0 ohm  Resistance range for VW / Bypass mode: 0.1 - 3.5 ohm  Output wattage range: 1 - 75W Temperature range: 100 - 315C / 200 - 600F Micro-USB charging port ( USB charging cable included ) Power by replaceable single 18650 battery ( not included ) Magnetic battery cover 510 thread spring connector