The power charger included in this kit is NOT designed to be used with mobile phones or other electronic devices . It is meant to be used only with the LED lamp included in the kit. Usage with other devices may lead to overheating or damage. Please take care to ensure that you only use the charger with LMM’s LED lamp. However, you can feel free to use the LED lamp and USB cord with any computer, portable charger, or any other mobile adapter with a USB outlet.