Charging limit voltage:12.6VArc length:1-5cm/0.4-2inch for automatic mode and 1-8cm/0.4-3.1inch for manual modeDischarge times:1200 times (conditions: discharge to 11V, manual mode and maximum pulse width)Weight: 276g/0.6lb (without charger)Note: It should be fully before using. Keep it about two more hours when a green light is lit. When the voltage displayed by the screen is less than 11V, please charge the coil to avoid the battery from being damaged. Disassembling is not allowed. After turning off the switch, its LED will continue to light up for about a minute, which is normal.Read before Purchasing:Due to 3D printing technology,its shell may have some minor defectsIt has a noise(when the high-voltage arc breaks through the air.Please refer to thunder)Due to higher voltage and higher secondary voltage density,there may be a small amount of arc leakage around the top of the secondary coil,which is normalPlease read the above content carefully and make sure that you don't mind before purchasing.Thank you!Battery capacity:200mAhBattery voltage:11.1VBattery voltage (fully ):12.6VAttention:should use it with a .Because the arc has heat,it is forbidden to use this product around and substances.During charging, please not place it around combustibles to prevent accidents.Never use it around electronic products such as computers, and mobile phones.Do not use this product on people or animals.If you have artificial organs implanted in your body or have a serious medical-condition such as heart disease, you are not allowed to use or go near the for coil!Turn off the switch when it is not in use,and keep it out of the reach of children.Plug Type:US Plug,it applies toCanada,India,Mexico,Thailand,Taiwan,the ,the Philippines and so on.Voltage:AC100-240VColour:YellowMaterial:Plastic+MetalPackage Contents:1 x for Coil1 x ChargerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.