... ego, ego-t, ego-w, ego-c, ego-t with led, ego-t with lcd, 510, 812 battery.3) No cotton ... !7) drip type: round and flat8) Charge Voltage: 110V-220V.9) Normal working voltage: 3.3V-4.2V10) color of crystal ... yearclearomizer ego Advantage:1.Perfect fit for popular model tank series e cig. such as eGo T,eGo-C,eGo-W ... ,eGo T LED,eGo T LCD and so on.2.Clearomizer tank system ...