So basically what the title says. I was just riding into work and like 4 mins in I think gee its awfully dark. I switch to the high beam and that worked.
In the parking lot I could see the filament in the low beam and it looked unbroken. I cycled the key off and on to no avail.
In about an hour or so I can bring it in and check the plug and the fuses.
It's weird... besides plugging in the phone charger and the tail tidy I've had no indication of anything going wrong.