1.Keep out of reach of children at all times. Use responsibly and with discretion. 2.Do not touch the electrodes (electronic lighting area). Bodily injury will occur. 3.Do not ignite lighter while it is charging. 4.After one or two uses, charge the lighter for 15-30 minutes only. Do not overcharge the lighter or leave it connected to a power supply for more than 1 hour. When the charger induction light is off, this indicates full charge. Remove immediately once it is fully charged. 5.The lighter can be charged by USB interface such as laptop, insert slot chargers, or car chargers which output current is 1a. Using chargers with output over Dc 5v 1a could destroy the battery. Note that most phone charger heads are 2A or 2.4A. Use 1a output currents only. 6.When not using the lighter, keep in a dry place. Avoid contact with water. Powered by a rechargeable battery. No Gas/Fuel Is Required. USB Charging.Does not create a flame, it is electrically operated and environmentally friendly. Using high-performance polymer aluminum battery, it can charge and discharge about 500 times. This product USB connection only for charging, can be connected to a computer, cell phone chargers and other charging on any output voltage DC5V, output current is less than 3000MA charger. Do not continue to light a long time, it is recommended not to use more than 10 seconds to extend product life. Once charged completely it will hold a charge long enough to light up a cigarette up to 100-200 times on that charge 10 seconds automatic power off. Lighters are not toys, For adult use only. Not for use with metal pipes or metal smoking accessories. Adult supervision recommended for minors. Please fully charge lighter for 2 hours prior to use. To prevent shock, do not touch arc tips when using or use with metal pipes.