SED Variable Voltage / Wattage 18650 APV Mod

510/eGo threading connection
Removable beauty ring
Auto power-on when insert a 18650 battery and screw-up the bottom cap
Variable Wattage - can be adjustable from 3.0W to 15.0W (in .5W increments)
Variable Voltage - can be adjustable from 3.0V to 6.0V (in .1V increments)
0.7" OLED display showing menu, function and selection
Detecting atomizer resistance, and recommend the working voltage automatically
Battery voltage check
Output ON/OFF
LCD ON/OFF
Output current limit: 4A
Reverse polarity protection
Low resistance (lower than 1.2ohm), over resistance (higher than 5ohm), short circuit, low voltage (lower than 3.4V), and over voltage (higher than 9V) warning and protection
Houses single 18650 battery (battery sold separately)