Corsair MM700 power

[bkyle5678]

I bought the Corsair MM700 mouse pad for my son.  He doesn't have a computer.  He uses an iPad.  I want to power the lighting on the mouse pad by plugging the USB-C cable into a power adapter plugged into a wall outlet, but it's not working.  When I plug the USB-C cable into my computer, the lighting around the MM700 mouse pad works fine (I have not installed the iCUE software).  However, when I plug it into a USB power adaptor plugged into a wall outlet, the lighting on the mouse pad doesn't work.

Is there a trick to getting the lighting around the MM700 mouse pad to work without being plugged into a computer?