Yes, the LEDs will burn out after a while. Maybe not before you get sick of the Wii / Dolphin though.
Might also check that your PC powers off the USB ports when the PC is shutdown. Depending on the power settings, the PC may keep the USB ports powered, keeping the sensor bar powered.
If I were you, I'd pull out the cable unless it's inconvenient for you (i.e. you use the sensor bar pretty much whenever you have the PC on).
Might also check that your PC powers off the USB ports when the PC is shutdown. Depending on the power settings, the PC may keep the USB ports powered, keeping the sensor bar powered.
If I were you, I'd pull out the cable unless it's inconvenient for you (i.e. you use the sensor bar pretty much whenever you have the PC on).