What kind of USB power adapter for a LED light source is a USB power supply lamp?
no problem Use the USB power adapter output current are generally in the 500-600 ma. The laptop's USB port to provide 500 ma current. So the USB lamp current is absolutely not more than 500 ma.
On the market to buy the USB power supply, the output voltage 5 v dc, can plug in the USB lamp, power supply directly.
Usb LED lamp current is very small, only a few tens of milliwatts, can use any usb adapter 5 v.
5 v charger for charging the mobile phone can usb lamp power supply for 5 v voltage
