Features:
 1. Variable Voltage:. 3.0 - 6 volts
 2. Variable Wattage:. 3.0 - 15 W
 3 .Short Circuit Protection;
 4. Reverse Battery Protection Circuit;
 5. Resistive Load Detection (Ohms meter);
 6. ON / OFF battery switch;
 7. OLED Battery Power Display;
 8. High compatibility 510/eGo Connector:
 9. OLED display (Ohms meter, Volts / Watts,voltage output)
 10.Panasonic 18650 batteries 3400mah
 11.power bank function http://www.waideacig.com/