I want to power 25 Adafruit NeoPixel LEDs. According to the specifications they draw a maximum of 60mA at 5V each. In total that would be 1,5A at 5V.
I would like to use a 2A USB phone charger as a power supply for the LEDs. If I cut open an old USB cable, there should be 2 power lines in there. I would like to use those to power the LEDs.
- Is there any reason that a USB phone charger should not be used as a power supply?
- Is there any reason that this is a bad idea?