The LED Base Plate operates on 3 AAA batteries by default, which are not included with your order.
If you'd like to optionally have your Base plugged into a wall outlet via USB cable, this add-on makes that possible.
USB2.0 A Male - 3.5mm OD / 1,35mm ID coaxial Male
NOTE: According to the manufacturer, this USB cable should work together with the LED Base Plate. However, since the LED Base Plate requires 4.5V and common USB Power Supplies supply 5.0V, we take no responsibility for any damage.